{"id":18153,"date":"2025-03-24T12:56:44","date_gmt":"2025-03-24T12:56:44","guid":{"rendered":"https:\/\/unp.education\/content\/?p=18153"},"modified":"2025-03-24T12:56:44","modified_gmt":"2025-03-24T12:56:44","slug":"what-are-the-basic-elements-of-a-programming-language","status":"publish","type":"post","link":"https:\/\/unp.education\/content\/what-are-the-basic-elements-of-a-programming-language\/","title":{"rendered":"What are the basic elements of a Java programming language?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"18153\" class=\"elementor elementor-18153\">\n\t\t\t\t<div class=\"elementor-element elementor-element-aafa904 e-flex e-con-boxed e-con e-parent\" data-id=\"aafa904\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d7de642 elementor-widget elementor-widget-heading\" data-id=\"d7de642\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Structure_of_a_Java_Program_A_Comprehensive_Guide\"><\/span>Structure of a Java Program: A Comprehensive Guide<span class=\"ez-toc-section-end\"><\/span><\/h1><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" 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href=\"https:\/\/unp.education\/content\/what-are-the-basic-elements-of-a-programming-language\/#Structure_of_a_Java_Program_A_Comprehensive_Guide\" >Structure of a Java Program: A Comprehensive Guide<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/unp.education\/content\/what-are-the-basic-elements-of-a-programming-language\/#Introduction_to_Java_Program_Structure\" >Introduction to Java Program Structure<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/unp.education\/content\/what-are-the-basic-elements-of-a-programming-language\/#Core_Components_of_a_Java_Program\" >Core Components of a Java Program<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/unp.education\/content\/what-are-the-basic-elements-of-a-programming-language\/#Key_Syntax_Rules_in_Java\" >Key Syntax Rules in Java<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/unp.education\/content\/what-are-the-basic-elements-of-a-programming-language\/#Programming_Concepts_Integrated_with_Java\" >Programming Concepts Integrated with Java<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/unp.education\/content\/what-are-the-basic-elements-of-a-programming-language\/#Building_Blocks_of_a_Java_Program\" >Building Blocks of a Java Program<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/unp.education\/content\/what-are-the-basic-elements-of-a-programming-language\/#Writing_a_Simple_Java_Program\" >Writing a Simple Java Program<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/unp.education\/content\/what-are-the-basic-elements-of-a-programming-language\/#Best_Practices_for_Writing_Java_Programs\" >Best Practices for Writing Java Programs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/unp.education\/content\/what-are-the-basic-elements-of-a-programming-language\/#FAQs_Addressing_Common_Questions_on_Java_Program_Structure\" >FAQs: Addressing Common Questions on Java Program Structure<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/unp.education\/content\/what-are-the-basic-elements-of-a-programming-language\/#Our_Students_Testimonials\" >Our Students Testimonials:<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-cd06ab8 e-flex e-con-boxed e-con e-parent\" data-id=\"cd06ab8\" 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Understanding the <strong>structure of a Java program<\/strong> is fundamental for beginners and professionals aiming to build efficient and scalable applications.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1d7701b elementor-hidden-mobile e-flex e-con-boxed e-con e-parent\" data-id=\"1d7701b\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-1c95f74 e-con-full e-flex e-con e-child\" data-id=\"1c95f74\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-63ee00c e-con-full e-flex e-con e-child\" data-id=\"63ee00c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2e2c0ea elementor-widget elementor-widget-heading\" data-id=\"2e2c0ea\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Unlock Your Business Intelligence Potential with Power BI!<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-47aaba1 elementor-widget elementor-widget-heading\" data-id=\"47aaba1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<span class=\"elementor-heading-title elementor-size-default\">Take the next step in your data career with our 6-week comprehensive course, 'Mastering Business Intelligence with Power BI'.\nReady to transform your data skills? 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data skills? Enroll Now and elevate your career with UNP Education!<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6e1c6df e-con-full e-flex e-con e-child\" data-id=\"6e1c6df\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-366eaba elementor-widget elementor-widget-button\" data-id=\"366eaba\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/unp.education\/course-overview\/mastering-buisness-intelligence-with-power-bi\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Join Now<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ef06d76 elementor-widget elementor-widget-button\" data-id=\"ef06d76\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/unp.education\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Browse Course<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e76ca06 e-flex e-con-boxed e-con e-parent\" data-id=\"e76ca06\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-913ff98 elementor-widget elementor-widget-heading\" data-id=\"913ff98\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Introduction_to_Java_Program_Structure\"><\/span>Introduction to Java Program Structure<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a65c546 e-flex e-con-boxed e-con e-parent\" data-id=\"a65c546\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-db44c5e elementor-widget elementor-widget-heading\" data-id=\"db44c5e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">What is a Java Program?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b706f6f elementor-widget elementor-widget-text-editor\" data-id=\"b706f6f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A Java program is a sequence of instructions written in the Java programming language, designed to perform specific tasks. Whether it\u2019s a simple &#8220;Hello, World!&#8221; or a complex enterprise application, all Java programs follow a predefined structure.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-969daf6 e-flex e-con-boxed e-con e-parent\" data-id=\"969daf6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fea2852 elementor-widget elementor-widget-heading\" data-id=\"fea2852\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Why Understanding Java Structure is Crucial<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-acd1549 elementor-widget elementor-widget-text-editor\" data-id=\"acd1549\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The well-defined structure of Java ensures that programs are readable, maintainable, and efficient. It provides a clear blueprint that developers can follow, reducing errors and improving collaboration.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-64ae99e e-flex e-con-boxed e-con e-parent\" data-id=\"64ae99e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7bad9ee elementor-widget elementor-widget-heading\" data-id=\"7bad9ee\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Core_Components_of_a_Java_Program\"><\/span>Core Components of a Java Program<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-92045cf elementor-widget elementor-widget-text-editor\" data-id=\"92045cf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h5><strong>Packages and Their Importance<\/strong><\/h5><p>Packages act as containers for classes, helping to organize code logically and avoid name conflicts. Think of packages as folders within a computer directory.<\/p><h5><strong>The <code>import<\/code> Statement: Bridging Libraries<\/strong><\/h5><p>The <code>import<\/code> statement allows you to access predefined classes and methods from Java&#8217;s extensive libraries. This enhances functionality without reinventing the wheel.<\/p><h5><strong>The Class Declaration<\/strong><\/h5><p>Every Java program revolves around classes. A class is a blueprint that defines the behavior and properties of objects.<\/p><h5><strong>The <code>main<\/code> Method: Entry Point of Execution<\/strong><\/h5><p>The <code>main<\/code> method is the heartbeat of a Java application. It is where the program begins execution, marked by the syntax <code>public static void main(String[] args)<\/code>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-df11647 e-flex e-con-boxed e-con e-parent\" data-id=\"df11647\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-81f64a2 elementor-widget elementor-widget-heading\" data-id=\"81f64a2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Key_Syntax_Rules_in_Java\"><\/span>Key Syntax Rules in Java<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bf47748 elementor-widget elementor-widget-text-editor\" data-id=\"bf47748\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li><strong>Case Sensitivity:<\/strong> Java differentiates between <code>myVariable<\/code> and <code>MyVariable<\/code>.<\/li><li><strong>Curly Braces:<\/strong> Every block of code must be enclosed in <code>{}<\/code>.<\/li><li><strong>Keywords:<\/strong> Reserved words like <code>class<\/code>, <code>static<\/code>, and <code>void<\/code> cannot be used as identifiers<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-192f376 elementor-hidden-mobile e-flex e-con-boxed e-con e-parent\" data-id=\"192f376\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-6756a47 e-con-full e-flex e-con e-child\" data-id=\"6756a47\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-9cef7dc e-con-full e-flex e-con e-child\" data-id=\"9cef7dc\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e188ce3 elementor-widget elementor-widget-heading\" data-id=\"e188ce3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Unlock Your Business Intelligence Potential with Power BI!<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bef4718 elementor-widget elementor-widget-heading\" data-id=\"bef4718\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<span class=\"elementor-heading-title elementor-size-default\">Take the next step in your data career with our 6-week comprehensive course, 'Mastering Business Intelligence with Power BI'.\nReady to transform your data skills? Enroll Now and elevate your career with UNP Education!<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-462cc03 e-con-full e-flex e-con e-child\" data-id=\"462cc03\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-64784b3 elementor-widget elementor-widget-button\" data-id=\"64784b3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/unp.education\/course-overview\/mastering-buisness-intelligence-with-power-bi\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Join Now<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7fab295 elementor-widget elementor-widget-button\" data-id=\"7fab295\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/unp.education\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Browse Course<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0abb735 e-con-full e-flex e-con e-child\" data-id=\"0abb735\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-013f58e elementor-widget elementor-widget-image\" data-id=\"013f58e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"975\" height=\"548\" src=\"https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900-1024x576.png\" class=\"attachment-large size-large wp-image-18092\" alt=\"Business Intelligence Live Course with Power BI\" srcset=\"https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900-1024x576.png 1024w, https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900-300x169.png 300w, https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900-768x432.png 768w, https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900-600x338.png 600w, https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900.png 1280w\" sizes=\"(max-width: 975px) 100vw, 975px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a1e24a6 elementor-hidden-desktop elementor-hidden-tablet e-flex e-con-boxed e-con e-parent\" data-id=\"a1e24a6\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-75ba4aa e-con-full e-flex e-con e-child\" data-id=\"75ba4aa\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-38cd03d elementor-widget elementor-widget-image\" data-id=\"38cd03d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"975\" height=\"548\" src=\"https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900-1024x576.png\" class=\"attachment-large size-large wp-image-18092\" alt=\"Business Intelligence Live Course with Power BI\" srcset=\"https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900-1024x576.png 1024w, https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900-300x169.png 300w, https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900-768x432.png 768w, https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900-600x338.png 600w, https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900.png 1280w\" sizes=\"(max-width: 975px) 100vw, 975px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-92ce09b e-con-full e-flex e-con e-child\" data-id=\"92ce09b\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-53c8c1f e-con-full e-flex e-con e-child\" data-id=\"53c8c1f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bdf63ef elementor-widget elementor-widget-heading\" data-id=\"bdf63ef\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Unlock Your Business Intelligence Potential with Power BI!<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1c4fc9e elementor-widget elementor-widget-heading\" data-id=\"1c4fc9e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<span class=\"elementor-heading-title elementor-size-default\">Take the next step in your data career with our 6-week comprehensive course, 'Mastering Business Intelligence with Power BI'.\nReady to transform your data skills? Enroll Now and elevate your career with UNP Education!<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-fae678b e-con-full e-flex e-con e-child\" data-id=\"fae678b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-261f9d8 elementor-widget elementor-widget-button\" data-id=\"261f9d8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/unp.education\/course-overview\/mastering-buisness-intelligence-with-power-bi\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Join Now<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9305a89 elementor-widget elementor-widget-button\" data-id=\"9305a89\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/unp.education\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Browse Course<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bd1a3df e-flex e-con-boxed e-con e-parent\" data-id=\"bd1a3df\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ea9e5d5 elementor-widget elementor-widget-heading\" data-id=\"ea9e5d5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Programming_Concepts_Integrated_with_Java\"><\/span>Programming Concepts Integrated with Java<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3f8efcd elementor-widget elementor-widget-text-editor\" data-id=\"3f8efcd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li><p>Understanding the building blocks of a Java program is crucial for writing effective and efficient code. These components work together to form the foundation of any Java application, from simple scripts to complex software.<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2dae2f7 elementor-widget elementor-widget-text-editor\" data-id=\"2dae2f7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li><h4><strong>1. Variables and Constants<\/strong><\/h4><p>Variables and constants are the primary data holders in a Java program.<\/p><ul><li><strong>Variables:<\/strong> They are used to store data that may change during program execution. For example:<div class=\"contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary dark:bg-gray-950\"><div class=\"flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between rounded-t-md h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary select-none\">java<\/div><div class=\"sticky top-9 md:top-[5.75rem]\"><div class=\"absolute bottom-0 right-2 flex h-9 items-center\"><div class=\"flex items-center rounded bg-token-sidebar-surface-primary px-2 font-sans text-xs text-token-text-secondary dark:bg-token-main-surface-secondary\"><span class=\"\" data-state=\"closed\"><button class=\"flex gap-1 items-center select-none py-1\">Copy code<\/button><\/span><\/div><\/div><\/div><div class=\"overflow-y-auto p-4\" dir=\"ltr\"><code class=\"!whitespace-pre hljs language-java\"><span class=\"hljs-type\">int<\/span> <span class=\"hljs-variable\">age<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">25<\/span>; <span class=\"hljs-comment\">\/\/ Variable to store age<\/span>\n<\/code><\/div><\/div><\/li><li><strong>Constants:<\/strong> Defined using the <code>final<\/code> keyword, constants store values that remain unchanged throughout the program. For example:<div class=\"contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary dark:bg-gray-950\"><div class=\"flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between rounded-t-md h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary select-none\">java<\/div><div class=\"sticky top-9 md:top-[5.75rem]\"><div class=\"absolute bottom-0 right-2 flex h-9 items-center\"><div class=\"flex items-center rounded bg-token-sidebar-surface-primary px-2 font-sans text-xs text-token-text-secondary dark:bg-token-main-surface-secondary\"><span class=\"\" data-state=\"closed\"><button class=\"flex gap-1 items-center select-none py-1\">Copy code<\/button><\/span><\/div><\/div><\/div><div class=\"overflow-y-auto p-4\" dir=\"ltr\"><code class=\"!whitespace-pre hljs language-java\"><span class=\"hljs-keyword\">final<\/span> <span class=\"hljs-type\">double<\/span> <span class=\"hljs-variable\">PI<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">3.14159<\/span>; <span class=\"hljs-comment\">\/\/ A constant for Pi<\/span>\n<\/code><\/div><\/div><\/li><\/ul><hr \/><h4><strong>2. Data Types<\/strong><\/h4><p>Java is a statically-typed language, meaning every variable must have a defined data type. The main types include:<\/p><ul><li><strong>Primitive Data Types:<\/strong> These include <code>int<\/code>, <code>double<\/code>, <code>char<\/code>, <code>boolean<\/code>, etc.<\/li><li><strong>Reference Data Types:<\/strong> Used for objects like arrays, strings, and user-defined classes.<\/li><\/ul><p>For example:<\/p><div class=\"contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary dark:bg-gray-950\"><div class=\"flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between rounded-t-md h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary select-none\">java<\/div><div class=\"sticky top-9 md:top-[5.75rem]\"><div class=\"absolute bottom-0 right-2 flex h-9 items-center\"><div class=\"flex items-center rounded bg-token-sidebar-surface-primary px-2 font-sans text-xs text-token-text-secondary dark:bg-token-main-surface-secondary\"><span class=\"\" data-state=\"closed\"><button class=\"flex gap-1 items-center select-none py-1\">Copy code<\/button><\/span><\/div><\/div><\/div><div class=\"overflow-y-auto p-4\" dir=\"ltr\"><code class=\"!whitespace-pre hljs language-java\"><span class=\"hljs-type\">int<\/span> <span class=\"hljs-variable\">number<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">10<\/span>;       <span class=\"hljs-comment\">\/\/ Integer data type<\/span>\n<span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">message<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">\"Hi\"<\/span>; <span class=\"hljs-comment\">\/\/ Reference data type<\/span>\n<\/code><\/div><\/div><hr \/><h4><strong>3. Classes and Objects<\/strong><\/h4><ul><li><strong>Classes:<\/strong> The blueprint for creating objects. A class encapsulates data and methods that operate on that data.<div class=\"contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary dark:bg-gray-950\"><div class=\"flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between rounded-t-md h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary select-none\">java<\/div><div class=\"sticky top-9 md:top-[5.75rem]\"><div class=\"absolute bottom-0 right-2 flex h-9 items-center\"><div class=\"flex items-center rounded bg-token-sidebar-surface-primary px-2 font-sans text-xs text-token-text-secondary dark:bg-token-main-surface-secondary\"><span class=\"\" data-state=\"closed\"><button class=\"flex gap-1 items-center select-none py-1\">Copy code<\/button><\/span><\/div><\/div><\/div><div class=\"overflow-y-auto p-4\" dir=\"ltr\"><code class=\"!whitespace-pre hljs language-java\"><span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">Car<\/span> {\n    String color;\n    <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">drive<\/span><span class=\"hljs-params\">()<\/span> {\n        System.out.println(<span class=\"hljs-string\">\"Car is driving\"<\/span>);\n    }\n}\n<\/code><\/div><\/div><\/li><li><strong>Objects:<\/strong> Instances of a class. They represent the real-world entities in a program.<div class=\"contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary dark:bg-gray-950\"><div class=\"flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between rounded-t-md h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary select-none\">java<\/div><div class=\"sticky top-9 md:top-[5.75rem]\"><div class=\"absolute bottom-0 right-2 flex h-9 items-center\"><div class=\"flex items-center rounded bg-token-sidebar-surface-primary px-2 font-sans text-xs text-token-text-secondary dark:bg-token-main-surface-secondary\"><span class=\"\" data-state=\"closed\"><button class=\"flex gap-1 items-center select-none py-1\">Copy code<\/button><\/span><\/div><\/div><\/div><div class=\"overflow-y-auto p-4\" dir=\"ltr\"><code class=\"!whitespace-pre hljs language-java\"><span class=\"hljs-type\">Car<\/span> <span class=\"hljs-variable\">myCar<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">Car<\/span>(); <span class=\"hljs-comment\">\/\/ Creating an object of Car<\/span>\n<\/code><\/div><\/div><\/li><\/ul><hr \/><h4><strong>4. Methods<\/strong><\/h4><p>Methods are blocks of code designed to perform specific tasks. They help in reusing code and improving modularity.<\/p><ul><li><strong>Syntax:<\/strong><div class=\"contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary dark:bg-gray-950\"><div class=\"flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between rounded-t-md h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary select-none\">java<\/div><div class=\"sticky top-9 md:top-[5.75rem]\"><div class=\"absolute bottom-0 right-2 flex h-9 items-center\"><div class=\"flex items-center rounded bg-token-sidebar-surface-primary px-2 font-sans text-xs text-token-text-secondary dark:bg-token-main-surface-secondary\"><span class=\"\" data-state=\"closed\"><button class=\"flex gap-1 items-center select-none py-1\">Copy code<\/button><\/span><\/div><\/div><\/div><div class=\"overflow-y-auto p-4\" dir=\"ltr\"><code class=\"!whitespace-pre hljs language-java\">returnType <span class=\"hljs-title function_\">methodName<\/span><span class=\"hljs-params\">(parameters)<\/span> {\n    <span class=\"hljs-comment\">\/\/ method body<\/span>\n}\n<\/code><\/div><\/div><\/li><li>Example:<div class=\"contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary dark:bg-gray-950\"><div class=\"flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between rounded-t-md h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary select-none\">java<\/div><div class=\"sticky top-9 md:top-[5.75rem]\"><div class=\"absolute bottom-0 right-2 flex h-9 items-center\"><div class=\"flex items-center rounded bg-token-sidebar-surface-primary px-2 font-sans text-xs text-token-text-secondary dark:bg-token-main-surface-secondary\"><span class=\"\" data-state=\"closed\"><button class=\"flex gap-1 items-center select-none py-1\">Copy code<\/button><\/span><\/div><\/div><\/div><div class=\"overflow-y-auto p-4\" dir=\"ltr\"><code class=\"!whitespace-pre hljs language-java\"><span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-type\">int<\/span> <span class=\"hljs-title function_\">addNumbers<\/span><span class=\"hljs-params\">(<span class=\"hljs-type\">int<\/span> a, <span class=\"hljs-type\">int<\/span> b)<\/span> {\n    <span class=\"hljs-keyword\">return<\/span> a + b;\n}\n<\/code><\/div><\/div><\/li><\/ul><hr \/><h4><strong>5. Control Flow Statements<\/strong><\/h4><p>Control flow statements determine the order in which instructions are executed. These include:<\/p><ul><li><strong>Conditional Statements:<\/strong> <code>if<\/code>, <code>else<\/code>, <code>switch<\/code><\/li><li><strong>Loops:<\/strong> <code>for<\/code>, <code>while<\/code>, <code>do-while<\/code><\/li><li>Example:<div class=\"contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary dark:bg-gray-950\"><div class=\"flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between rounded-t-md h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary select-none\">java<\/div><div class=\"sticky top-9 md:top-[5.75rem]\"><div class=\"absolute bottom-0 right-2 flex h-9 items-center\"><div class=\"flex items-center rounded bg-token-sidebar-surface-primary px-2 font-sans text-xs text-token-text-secondary dark:bg-token-main-surface-secondary\"><span class=\"\" data-state=\"closed\"><button class=\"flex gap-1 items-center select-none py-1\">Copy code<\/button><\/span><\/div><\/div><\/div><div class=\"overflow-y-auto p-4\" dir=\"ltr\"><code class=\"!whitespace-pre hljs language-java\"><span class=\"hljs-keyword\">if<\/span> (age &gt;= <span class=\"hljs-number\">18<\/span>) {\n    System.out.println(<span class=\"hljs-string\">\"You are an adult.\"<\/span>);\n}\n<\/code><\/div><\/div><\/li><\/ul><hr \/><h4><strong>6. Arrays<\/strong><\/h4><p>Arrays store multiple values of the same data type in a single variable.<\/p><ul><li>Example:<div class=\"contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary dark:bg-gray-950\"><div class=\"flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between rounded-t-md h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary select-none\">java<\/div><div class=\"sticky top-9 md:top-[5.75rem]\"><div class=\"absolute bottom-0 right-2 flex h-9 items-center\"><div class=\"flex items-center rounded bg-token-sidebar-surface-primary px-2 font-sans text-xs text-token-text-secondary dark:bg-token-main-surface-secondary\"><span class=\"\" data-state=\"closed\"><button class=\"flex gap-1 items-center select-none py-1\">Copy code<\/button><\/span><\/div><\/div><\/div><div class=\"overflow-y-auto p-4\" dir=\"ltr\"><code class=\"!whitespace-pre hljs language-java\"><span class=\"hljs-type\">int<\/span>[] numbers = {<span class=\"hljs-number\">1<\/span>, <span class=\"hljs-number\">2<\/span>, <span class=\"hljs-number\">3<\/span>, <span class=\"hljs-number\">4<\/span>, <span class=\"hljs-number\">5<\/span>};\nSystem.out.println(numbers[<span class=\"hljs-number\">2<\/span>]); <span class=\"hljs-comment\">\/\/ Output: 3<\/span>\n<\/code><\/div><\/div><\/li><\/ul><hr \/><h4><strong>7. Packages<\/strong><\/h4><p>Packages organize classes into namespaces, avoiding name conflicts and providing modularity.<\/p><ul><li>Example:<div class=\"contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary dark:bg-gray-950\"><div class=\"flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between rounded-t-md h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary select-none\">java<\/div><div class=\"sticky top-9 md:top-[5.75rem]\"><div class=\"absolute bottom-0 right-2 flex h-9 items-center\"><div class=\"flex items-center rounded bg-token-sidebar-surface-primary px-2 font-sans text-xs text-token-text-secondary dark:bg-token-main-surface-secondary\"><span class=\"\" data-state=\"closed\"><button class=\"flex gap-1 items-center select-none py-1\">Copy code<\/button><\/span><\/div><\/div><\/div><div class=\"overflow-y-auto p-4\" dir=\"ltr\"><code class=\"!whitespace-pre hljs language-java\"><span class=\"hljs-keyword\">package<\/span> mypackage;\n<span class=\"hljs-keyword\">import<\/span> java.util.Scanner;\n<\/code><\/div><\/div><\/li><\/ul><hr \/><h4><strong>8. Exception Handling<\/strong><\/h4><p>Java provides robust exception-handling mechanisms to manage runtime errors using <code>try<\/code>, <code>catch<\/code>, and <code>finally<\/code> blocks.<\/p><ul><li>Example:<div class=\"contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary dark:bg-gray-950\"><div class=\"flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between rounded-t-md h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary select-none\">java<\/div><div class=\"sticky top-9 md:top-[5.75rem]\"><div class=\"absolute bottom-0 right-2 flex h-9 items-center\"><div class=\"flex items-center rounded bg-token-sidebar-surface-primary px-2 font-sans text-xs text-token-text-secondary dark:bg-token-main-surface-secondary\"><span class=\"\" data-state=\"closed\"><button class=\"flex gap-1 items-center select-none py-1\">Copy code<\/button><\/span><\/div><\/div><\/div><div class=\"overflow-y-auto p-4\" dir=\"ltr\"><code class=\"!whitespace-pre hljs language-java\"><span class=\"hljs-keyword\">try<\/span> {\n    <span class=\"hljs-type\">int<\/span> <span class=\"hljs-variable\">result<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">10<\/span> \/ <span class=\"hljs-number\">0<\/span>;\n} <span class=\"hljs-keyword\">catch<\/span> (ArithmeticException e) {\n    System.out.println(<span class=\"hljs-string\">\"Cannot divide by zero!\"<\/span>);\n}\n<\/code><\/div><\/div><\/li><\/ul><hr \/><h4><strong>9. Input\/Output (I\/O)<\/strong><\/h4><p>Java&#8217;s I\/O system handles data input from users and outputs results. It typically uses classes like <code>Scanner<\/code> for input and <code>System.out<\/code> for output.<\/p><ul><li>Example:<div class=\"contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary dark:bg-gray-950\"><div class=\"flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between rounded-t-md h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary select-none\">java<\/div><div class=\"sticky top-9 md:top-[5.75rem]\"><div class=\"absolute bottom-0 right-2 flex h-9 items-center\"><div class=\"flex items-center rounded bg-token-sidebar-surface-primary px-2 font-sans text-xs text-token-text-secondary dark:bg-token-main-surface-secondary\"><span class=\"\" data-state=\"closed\"><button class=\"flex gap-1 items-center select-none py-1\">Copy code<\/button><\/span><\/div><\/div><\/div><div class=\"overflow-y-auto p-4\" dir=\"ltr\"><code class=\"!whitespace-pre hljs language-java\"><span class=\"hljs-type\">Scanner<\/span> <span class=\"hljs-variable\">scanner<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">Scanner<\/span>(System.in);\nSystem.out.print(<span class=\"hljs-string\">\"Enter your name: \"<\/span>);\n<span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">name<\/span> <span class=\"hljs-operator\">=<\/span> scanner.nextLine();\nSystem.out.println(<span class=\"hljs-string\">\"Hello, \"<\/span> + name);\n<\/code><\/div><\/div><\/li><\/ul><hr \/><h4><strong>10. Comments<\/strong><\/h4><p>Comments are non-executable statements used for documentation and code explanation.<\/p><ul><li><strong>Single-line comment:<\/strong> Starts with <code>\/\/<\/code><\/li><li><strong>Multi-line comment:<\/strong> Enclosed in <code>\/* *\/<\/code><\/li><li><strong>Javadoc comment:<\/strong> Begins with <code>\/**<\/code> and used for generating documentation<\/li><\/ul><p>Example:<\/p><div class=\"contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary dark:bg-gray-950\"><div class=\"flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between rounded-t-md h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary select-none\">java<\/div><div class=\"sticky top-9 md:top-[5.75rem]\"><div class=\"absolute bottom-0 right-2 flex h-9 items-center\"><div class=\"flex items-center rounded bg-token-sidebar-surface-primary px-2 font-sans text-xs text-token-text-secondary dark:bg-token-main-surface-secondary\"><span class=\"\" data-state=\"closed\"><button class=\"flex gap-1 items-center select-none py-1\">Copy code<\/button><\/span><\/div><\/div><\/div><div class=\"overflow-y-auto p-4\" dir=\"ltr\"><code class=\"!whitespace-pre hljs language-java\"><span class=\"hljs-comment\">\/\/ This is a single-line comment<\/span>\n<span class=\"hljs-comment\">\/* This is a\n   multi-line comment *\/<\/span>\n<span class=\"hljs-comment\">\/**\n * This is a Javadoc comment\n *\/<\/span>\n<\/code><\/div><\/div><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a656765 e-flex e-con-boxed e-con e-parent\" data-id=\"a656765\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8a9f9d3 elementor-widget elementor-widget-heading\" data-id=\"8a9f9d3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Building_Blocks_of_a_Java_Program\"><\/span>Building Blocks of a Java Program<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6416689 elementor-widget elementor-widget-text-editor\" data-id=\"6416689\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li><p>Here\u2019s a step-by-step guide to creating your first Java program:<\/p><ol><li><p>Open a text editor and write the following code:<\/p><div class=\"contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary dark:bg-gray-950\"><div class=\"flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between rounded-t-md h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary select-none\">java<\/div><div class=\"sticky top-9 md:top-[5.75rem]\"><div class=\"absolute bottom-0 right-2 flex h-9 items-center\"><div class=\"flex items-center rounded bg-token-sidebar-surface-primary px-2 font-sans text-xs text-token-text-secondary dark:bg-token-main-surface-secondary\"><span class=\"\" data-state=\"closed\"><button class=\"flex gap-1 items-center select-none py-1\">Copy code<\/button><\/span><\/div><\/div><\/div><div class=\"overflow-y-auto p-4\" dir=\"ltr\"><code class=\"!whitespace-pre hljs language-java\"><span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">HelloWorld<\/span> {<br \/>\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">(String[] args)<\/span> {<br \/>\n        System.out.println(<span class=\"hljs-string\">\"Hello, World!\"<\/span>);<br \/>\n    }<br \/>\n}<br \/>\n<\/code><\/div><\/div><\/li><li><p>Save the file as <code>HelloWorld.java<\/code>.<\/p><\/li><li><p>Compile the program using the command: <code>javac HelloWorld.java<\/code>.<\/p><\/li><li><p>Run it with: <code>java HelloWorld<\/code>.<\/p><\/li><\/ol><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8852831 e-flex e-con-boxed e-con e-parent\" data-id=\"8852831\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-56d7dce elementor-widget elementor-widget-heading\" data-id=\"56d7dce\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Writing_a_Simple_Java_Program\"><\/span>Writing a Simple Java Program<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8bf934a elementor-widget elementor-widget-text-editor\" data-id=\"8bf934a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li><p>Here\u2019s a step-by-step guide to creating your first Java program:<\/p><ol><li><p>Open a text editor and write the following code:<\/p><div class=\"contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary dark:bg-gray-950\"><div class=\"flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between rounded-t-md h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary select-none\">java<\/div><div class=\"sticky top-9 md:top-[5.75rem]\"><div class=\"absolute bottom-0 right-2 flex h-9 items-center\"><div class=\"flex items-center rounded bg-token-sidebar-surface-primary px-2 font-sans text-xs text-token-text-secondary dark:bg-token-main-surface-secondary\"><span class=\"\" data-state=\"closed\"><button class=\"flex gap-1 items-center select-none py-1\">Copy code<\/button><\/span><\/div><\/div><\/div><div class=\"overflow-y-auto p-4\" dir=\"ltr\"><code class=\"!whitespace-pre hljs language-java\"><span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">HelloWorld<\/span> {<br \/>\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">(String[] args)<\/span> {<br \/>\n        System.out.println(<span class=\"hljs-string\">\"Hello, World!\"<\/span>);<br \/>\n    }<br \/>\n}<br \/>\n<\/code><\/div><\/div><\/li><li><p>Save the file as <code>HelloWorld.java<\/code>.<\/p><\/li><li><p>Compile the program using the command: <code>javac HelloWorld.java<\/code>.<\/p><\/li><li><p>Run it with: <code>java HelloWorld<\/code>.<\/p><\/li><\/ol><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2ba61d2 e-flex e-con-boxed e-con e-parent\" data-id=\"2ba61d2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ff397f1 elementor-widget elementor-widget-heading\" data-id=\"ff397f1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Best_Practices_for_Writing_Java_Programs\"><\/span>Best Practices for Writing Java Programs<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0619aba elementor-widget elementor-widget-text-editor\" data-id=\"0619aba\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>Use <strong>comments<\/strong> for clarity.<\/li><li>Follow consistent <strong>naming conventions<\/strong>.<\/li><li>Regularly test and debug your code.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-fea7ab0 e-flex e-con-boxed e-con e-parent\" data-id=\"fea7ab0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-edd0f2c elementor-widget elementor-widget-heading\" data-id=\"edd0f2c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"FAQs_Addressing_Common_Questions_on_Java_Program_Structure\"><\/span>FAQs: Addressing Common Questions on Java Program Structure<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8732799 elementor-widget elementor-widget-text-editor\" data-id=\"8732799\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ol><li><p><span style=\"color: #000000;\"><strong>What is the role of the <code>main<\/code> method in Java?<\/strong> <\/span>The <code>main<\/code> method serves as the program&#8217;s starting point.<\/p><\/li><li><p><span style=\"color: #000000;\"><strong>How do I structure a large Java application?<\/strong><\/span> Break it into multiple packages and classes for modularity.<\/p><\/li><li><p><span style=\"color: #000000;\"><strong>What are packages, and why are they essential?<\/strong><\/span> Packages organize code and prevent class name conflicts.<\/p><\/li><li><p><span style=\"color: #000000;\"><strong>Can Java programs run without the <code>main<\/code> method?<\/strong><\/span> Only special Java programs like applets can bypass the <code>main<\/code> method.<\/p><\/li><li><p><span style=\"color: #000000;\"><strong>How can I implement data structures in Java?<\/strong><\/span> Use Java\u2019s <code>java.util<\/code> package, which includes classes like <code>ArrayList<\/code> and <code>HashMap<\/code>.<\/p><\/li><li><p><span style=\"color: #000000;\"><strong>What is the difference between Java and other programming languages?<\/strong><\/span> Java is platform-independent, object-oriented, and features automatic garbage collection.<\/p><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1069da0 elementor-hidden-mobile e-flex e-con-boxed e-con e-parent\" data-id=\"1069da0\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-5eba00b e-con-full e-flex e-con e-child\" data-id=\"5eba00b\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div 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data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-14ef8ca elementor-widget elementor-widget-image\" data-id=\"14ef8ca\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"975\" height=\"548\" src=\"https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900-1024x576.png\" class=\"attachment-large size-large wp-image-18092\" alt=\"Business Intelligence Live Course with Power BI\" srcset=\"https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900-1024x576.png 1024w, https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900-300x169.png 300w, https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900-768x432.png 768w, https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900-600x338.png 600w, https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900.png 1280w\" sizes=\"(max-width: 975px) 100vw, 975px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5528a9f elementor-hidden-desktop elementor-hidden-tablet e-flex e-con-boxed e-con e-parent\" data-id=\"5528a9f\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-5c82c06 e-con-full e-flex e-con e-child\" data-id=\"5c82c06\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fba429e elementor-widget elementor-widget-image\" data-id=\"fba429e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"975\" height=\"548\" src=\"https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900-1024x576.png\" class=\"attachment-large size-large wp-image-18092\" alt=\"Business Intelligence Live Course with Power BI\" srcset=\"https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900-1024x576.png 1024w, https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900-300x169.png 300w, https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900-768x432.png 768w, https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900-600x338.png 600w, https:\/\/unp.education\/content\/wp-content\/uploads\/2024\/10\/UNP-Course_Mastering-DS-ML-3_1731683217900.png 1280w\" sizes=\"(max-width: 975px) 100vw, 975px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2d01a51 e-con-full e-flex e-con e-child\" data-id=\"2d01a51\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-adf662f e-con-full e-flex e-con e-child\" data-id=\"adf662f\" 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ecosystem. Understanding the structure of a Java program is fundamental for beginners and professionals aiming to build efficient and scalable applications. Unlock Your Business Intelligence Potential with Power BI! Take the &#8230; <a title=\"What are the basic elements of a Java programming language?\" class=\"read-more\" href=\"https:\/\/unp.education\/content\/what-are-the-basic-elements-of-a-programming-language\/\" aria-label=\"Read more about What are the basic elements of a Java programming language?\">Read more<\/a><\/p>\n","protected":false},"author":7951,"featured_media":18245,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21,18],"tags":[],"class_list":["post-18153","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python-coding","category-interview-preparation"],"_links":{"self":[{"href":"https:\/\/unp.education\/content\/wp-json\/wp\/v2\/posts\/18153","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unp.education\/content\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unp.education\/content\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unp.education\/content\/wp-json\/wp\/v2\/users\/7951"}],"replies":[{"embeddable":true,"href":"https:\/\/unp.education\/content\/wp-json\/wp\/v2\/comments?post=18153"}],"version-history":[{"count":11,"href":"https:\/\/unp.education\/content\/wp-json\/wp\/v2\/posts\/18153\/revisions"}],"predecessor-version":[{"id":18247,"href":"https:\/\/unp.education\/content\/wp-json\/wp\/v2\/posts\/18153\/revisions\/18247"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/unp.education\/content\/wp-json\/wp\/v2\/media\/18245"}],"wp:attachment":[{"href":"https:\/\/unp.education\/content\/wp-json\/wp\/v2\/media?parent=18153"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unp.education\/content\/wp-json\/wp\/v2\/categories?post=18153"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unp.education\/content\/wp-json\/wp\/v2\/tags?post=18153"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}