{"id":14128,"date":"2018-04-20T08:44:55","date_gmt":"2018-04-20T08:44:55","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=14128"},"modified":"2026-05-30T15:34:21","modified_gmt":"2026-05-30T10:04:21","slug":"jdk-vs-jre-vs-jvm","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/jdk-vs-jre-vs-jvm\/","title":{"rendered":"Difference Between JDK vs JRE vs JVM"},"content":{"rendered":"<div class='__iawmlf-post-loop-links' style='display:none;' data-iawmlf-post-links='[{&quot;id&quot;:1972,&quot;href&quot;:&quot;https:\\\/\\\/en.wikipedia.org\\\/wiki\\\/Java_(software_platform)&quot;,&quot;archived_href&quot;:&quot;http:\\\/\\\/web-wp.archive.org\\\/web\\\/20251210045919\\\/https:\\\/\\\/en.wikipedia.org\\\/wiki\\\/Java_(software_platform)&quot;,&quot;redirect_href&quot;:&quot;&quot;,&quot;checks&quot;:[{&quot;date&quot;:&quot;2025-12-10 14:26:40&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2025-12-15 13:04:54&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-01-18 14:09:44&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-01-22 12:13:37&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-02-01 10:28:48&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-02-04 18:03:55&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-02-10 14:47:52&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-02-22 14:36:14&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-02-25 20:48:27&quot;,&quot;http_code&quot;:404},{&quot;date&quot;:&quot;2026-03-05 06:11:40&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-03-09 06:59:41&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-04-02 19:12:47&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-04-21 06:55:39&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-05-11 19:05:45&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-05-18 07:59:57&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-05-25 06:06:43&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-06-09 06:31:04&quot;,&quot;http_code&quot;:404}],&quot;broken&quot;:false,&quot;last_checked&quot;:{&quot;date&quot;:&quot;2026-06-09 06:31:04&quot;,&quot;http_code&quot;:404},&quot;process&quot;:&quot;done&quot;}]'><\/div>\n<p>In this Java tutorial, we are going to study What is JDK (Java Development Kit), JRE (Java Runtime Environment) or Java RTE, and JVM (<strong><a href=\"https:\/\/data-flair.training\/blogs\/java-virtual-machine-jvm\/\">Java Virtual Machine<\/a><\/strong>). Moreover, we will discuss the differences between JDK vs JRE vs JVM. At last, we see some functions of JDK and JRE and JVM.<\/p>\n<p>So, let us start the Difference between JDK, JRE, and JVM.<\/p>\n<div id=\"attachment_14141\" style=\"width: 1210px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/Difference-between-JDK-JVM-and-JRE-01.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-14141\" class=\"wp-image-14141 size-full\" src=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/Difference-between-JDK-JVM-and-JRE-01.jpg\" alt=\"JDK vs JRE vs JVM\" width=\"1200\" height=\"628\" srcset=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/Difference-between-JDK-JVM-and-JRE-01.jpg 1200w, https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/Difference-between-JDK-JVM-and-JRE-01-150x79.jpg 150w, https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/Difference-between-JDK-JVM-and-JRE-01-300x157.jpg 300w, https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/Difference-between-JDK-JVM-and-JRE-01-768x402.jpg 768w, https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/Difference-between-JDK-JVM-and-JRE-01-1024x536.jpg 1024w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/a><p id=\"caption-attachment-14141\" class=\"wp-caption-text\">JDK vs JRE vs JVM<\/p><\/div>\n<h3>Introduction to JDK vs JRE vs JVM<\/h3>\n<p>Here, we will discuss the introduction to JDK vs JRE vs JVM.<\/p>\n<h4>What is the Java Development Kit (JDK)?<\/h4>\n<p>The JDK stands for Java Development Kit used for developing Java applets and apps, it is basically a software development environment. JDK includes Java Runtime Environment (JRE) which happens to be a loader\/interpreter, a compiler called (javac), a document generator (Javadoc), an archiver (jar), and other tools required in development.<\/p>\n<ul>\n<li>Loads Code<\/li>\n<li>Verifies Code<\/li>\n<li>Executes Code<\/li>\n<li>Provides Runtime Environment<\/li>\n<\/ul>\n<p><strong><a href=\"https:\/\/data-flair.training\/blogs\/design-patterns-in-java\/\">Do you know What is Design Patterns in Java?<\/a><\/strong><\/p>\n<h4>What is the Java Runtime Environment (JRE)?<\/h4>\n<p>Java Runtime Environment or JRE is also known as Java RTE. Java Runtime Environment contains core classes and supporting files, it also contains Java Virtual Machine (JVM). It provides the runtime environment.<\/p>\n<ul>\n<li>A particular where the working of Java Virtual Machine is determined. Be that as it may, usage supplier is free to pick the calculation. Its usage has been given by Sun and different organizations.<\/li>\n<li>An implementation is a PC program that meets the prerequisites of the JVM particular.<\/li>\n<li>Runtime Instance Whenever you compose java order on the summon provoke to run the<a href=\"https:\/\/data-flair.training\/blogs\/class-and-object-in-java\/\"><strong> java class<\/strong><\/a>, an occasion of JVM is made.<\/li>\n<li>JDK or Java Development Kit is a kit that physically exists, it contains JRE+ and other tools.<\/li>\n<\/ul>\n<div id=\"attachment_14143\" style=\"width: 397px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/jre2-1.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-14143\" class=\"wp-image-14143 size-full\" src=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/jre2-1.jpg\" alt=\"JDK vs JRE vs JVM\" width=\"387\" height=\"378\" srcset=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/jre2-1.jpg 387w, https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/jre2-1-150x147.jpg 150w, https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/jre2-1-300x293.jpg 300w\" sizes=\"auto, (max-width: 387px) 100vw, 387px\" \/><\/a><p id=\"caption-attachment-14143\" class=\"wp-caption-text\">JDK vs JRE vs JVM &#8211;\u00a0Java Runtime Environment<\/p><\/div>\n<p><strong><a href=\"https:\/\/data-flair.training\/blogs\/best-java-books\/\">Read about Top Java Books to Learn Java Programming<\/a><\/strong><\/p>\n<h4>What is the Java Virtual Machine (JVM)?<\/h4>\n<p>JVM provides a runtime environment for executing Java bytecode. It is an abstract machine that is platform dependent and has 3 notions as a specification (Document that describes requirement of JVM implementation), Implementation (a Computer program that meets JVM requirements) and Instance (Implementation that executes Java bytecode).<br \/>\n<strong>Main tasks of JVM are:<\/strong><\/p>\n<ul>\n<li>Loading Code<\/li>\n<li>Verifying Code<\/li>\n<li>Executing Code<\/li>\n<li>Providing Runtime Environment<\/li>\n<\/ul>\n<h3>Difference Between JDK, JRE, and JVM<\/h3>\n<p>Consider the following diagram.<\/p>\n<div id=\"attachment_14144\" style=\"width: 463px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JDK_JRE_JVM_x-Copy.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-14144\" class=\"wp-image-14144 size-full\" src=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JDK_JRE_JVM_x-Copy.jpg\" alt=\"JDK vs JRE vs JVM\" width=\"453\" height=\"441\" srcset=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JDK_JRE_JVM_x-Copy.jpg 453w, https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JDK_JRE_JVM_x-Copy-150x146.jpg 150w, https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JDK_JRE_JVM_x-Copy-300x292.jpg 300w\" sizes=\"auto, (max-width: 453px) 100vw, 453px\" \/><\/a><p id=\"caption-attachment-14144\" class=\"wp-caption-text\">Difference between JDK and JRE and JVM<\/p><\/div>\n<p><strong><a href=\"https:\/\/data-flair.training\/blogs\/java-character-class\/\">Let&#8217;s Discuss Java Character Class Methods with Syntax and Examples<\/a><\/strong><\/p>\n<h4>JDK vs JRE Functions<\/h4>\n<h5>i. What does JRE comprise of?<\/h5>\n<p>JRE comprises the accompanying segments.<\/p>\n<ul>\n<li><strong>Deployment Techniques \u2013<\/strong> It includes arrangement, Java Web Start and Java Plug-in.<\/li>\n<li><strong>UI toolkits \u2013<\/strong> User Interface including Abstract Window Toolkit (AWT), Swing, Java 2D, Accessibility, Image I\/O, Print Service, Sound, intuitive (DnD) and information techniques.<\/li>\n<li><strong>Integration libraries \u2013<\/strong> It includes Interface Definition Language (IDL), Java Database Connectivity (JDBC, Remote Method Invocation (RMI), Remote Method Invocation over Internet Inter-Orb Protocol (RMI-IIOP) ), Java Naming and Directory Interface (JNDI) and scripting.<\/li>\n<li>Other base libraries, including worldwide help, input\/yield (I\/O), expansion instrument, Beans, Java Management Extensions (JMX), Java Native Interface (JNI), Math, Networking, Override Mechanism, Security, Serialization and Java for XML Processing (XML JAXP).<\/li>\n<li><strong>Lang and util base libraries &#8211;<\/strong> It includes lang and util, administration, forming, zip, instrument, reflection, Collections, Concurrency Utilities, Java Archive (JAR), Logging, Preferences API, Ref Objects and Regular Expressions.<\/li>\n<li>Java Virtual Machine (JVM), including Java HotSpot Client and Server Virtual Machines.<\/li>\n<\/ul>\n<p><strong><a href=\"https:\/\/data-flair.training\/blogs\/packages-in-java\/\">Read About Packages in Java \u2013 Working &amp; Types of Java Packages With Examples<\/a><\/strong><\/p>\n<h5>ii. How do JRE functions?<\/h5>\n<p>See how the JRE functions let us consider a Java source record spared as Example.java. The record is incorporated into an arrangement of Byte Code that is put away in a &#8220;.class&#8221; document. Here it will be &#8220;Example.class&#8221;.<\/p>\n<div id=\"attachment_14145\" style=\"width: 243px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JRE_JDK_JVM-Copy.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-14145\" class=\"wp-image-14145 size-full\" src=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JRE_JDK_JVM-Copy.jpg\" alt=\"JDK vs JRE vs JVM\" width=\"233\" height=\"279\" srcset=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JRE_JDK_JVM-Copy.jpg 233w, https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JRE_JDK_JVM-Copy-125x150.jpg 125w\" sizes=\"auto, (max-width: 233px) 100vw, 233px\" \/><\/a><p id=\"caption-attachment-14145\" class=\"wp-caption-text\">JDK vs JRE vs JVM &#8211;\u00a0JRE functions<\/p><\/div>\n<p><strong style=\"font-family: Verdana, Geneva, sans-serif\">Actions at runtime \u2013<\/strong><\/p>\n<h4><strong>Java ClassLoader<\/strong><\/h4>\n<p>The ClassLoader stacks every vital class required for the execution of a program. It gives security by isolating the namespaces of the nearby record framework from that imported through the system. These records are stacked either from a hard plate, a system or from different sources.<br \/>\n<a href=\"https:\/\/data-flair.training\/blogs\/island-of-isolation-in-java\/\"><strong>Do you know about the Island of Isolation in Java with Example <\/strong><\/a><\/p>\n<h4><strong>Java Byte Code Verifier<\/strong><\/h4>\n<p>The JVM puts the code through the ByteCode Verifier that checks the format and checks for an illicit code. Illicit code, for instance, is code that disregards get to rights on objects or abuses the execution of pointers.<br \/>\nThe Byte Code verifier guarantees that the code holds fast to the JVM particular and does not damage framework respectability.<\/p>\n<div id=\"attachment_14146\" style=\"width: 212px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JRE_JDK_JVM_1-Copy.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-14146\" class=\"wp-image-14146 size-full\" src=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JRE_JDK_JVM_1-Copy.jpg\" alt=\"JDK vs JRE vs JVM\" width=\"202\" height=\"472\" srcset=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JRE_JDK_JVM_1-Copy.jpg 202w, https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JRE_JDK_JVM_1-Copy-64x150.jpg 64w, https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JRE_JDK_JVM_1-Copy-128x300.jpg 128w\" sizes=\"auto, (max-width: 202px) 100vw, 202px\" \/><\/a><p id=\"caption-attachment-14146\" class=\"wp-caption-text\">JDK vs JRE vs JVM &#8211; Byte Code Verifier<\/p><\/div>\n<h4><strong>Java Interpreter<\/strong><\/h4>\n<p>At runtime, the Byte Code stacked, checked and keep running by the mediator. The translator has the accompanying two capacities:<\/p>\n<ul>\n<li>Execute the Byte Code<\/li>\n<li>Make proper calls to the hidden equipment<\/li>\n<\/ul>\n<p><strong><a href=\"https:\/\/data-flair.training\/blogs\/constructor-in-java\/\">Let&#8217;s Explore the Constructor in Java \u2013 Types of Constructor in Java<\/a><\/strong><\/p>\n<div id=\"attachment_14150\" style=\"width: 632px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JRE_JDK_JVM_2-Copy.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-14150\" class=\"wp-image-14150 size-full\" src=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JRE_JDK_JVM_2-Copy.jpg\" alt=\"JDK vs JRE vs JVM\" width=\"622\" height=\"472\" srcset=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JRE_JDK_JVM_2-Copy.jpg 622w, https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JRE_JDK_JVM_2-Copy-150x114.jpg 150w, https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JRE_JDK_JVM_2-Copy-300x228.jpg 300w\" sizes=\"auto, (max-width: 622px) 100vw, 622px\" \/><\/a><p id=\"caption-attachment-14150\" class=\"wp-caption-text\">JDK vs JRE vs JVM &#8211;\u00a0Java Interpreter<\/p><\/div>\n<div id=\"attachment_14151\" style=\"width: 642px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JRE_JDK_JVM_4.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-14151\" class=\"wp-image-14151 size-full\" src=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JRE_JDK_JVM_4.jpg\" alt=\"JDK vs JRE vs JVM\" width=\"632\" height=\"502\" srcset=\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JRE_JDK_JVM_4.jpg 632w, https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JRE_JDK_JVM_4-150x119.jpg 150w, https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/04\/JRE_JDK_JVM_4-300x238.jpg 300w\" sizes=\"auto, (max-width: 632px) 100vw, 632px\" \/><\/a><p id=\"caption-attachment-14151\" class=\"wp-caption-text\">Difference between JDK vs JRE vs JVM &#8211;\u00a0Java Interpreter<\/p><\/div>\n<h4>How do JVM functions?<\/h4>\n<p>JVM turns into an occurrence of JRE at runtime of a Java program. It is generally known as a runtime interpreter. JVM to a great extent helps in the deliberation of internal execution from the software engineers who make utilization of libraries for their projects from JDK.<\/p>\n<ul>\n<li>Java Virtual machine helps in running the byte code of a program. It consists of an engine that executes the Java byte code.<\/li>\n<li>It has a JVM memory area which contains heap memory, stack area, method area for storing the object when they are needed.<\/li>\n<li>Native method Interface &amp; Native method libraries provide the libraries when the method or class is executing. It connects JVM with libraries.<\/li>\n<\/ul>\n<p>This was all\u00a0about \u00a0JDK vs JRE vs JVM Tutorial. Hope you like our explanation<b><\/b>.<\/p>\n<p><strong><a href=\"https:\/\/data-flair.training\/blogs\/jar-file-in-java\/\">Read About What is Jar File in Java and How to Create it<\/a><\/strong><\/p>\n<h3>Conclusion<\/h3>\n<p>In this Java\u00a0tutorial, we learned about what is JRE, JVM, and JDK. In addition, we explore the basic differences between JRE vs JVM vs JDK, with examples.\u00a0Furthermore, if you have any query, feel free to ask in a comment section.<\/p>\n<p style=\"font-weight: 400\">Related Topic-\u00a0<strong><a href=\"https:\/\/data-flair.training\/blogs\/convert-colored-image\/\">How to Convert Colored Image in Java<\/a><\/strong><\/p>\n<p style=\"font-weight: 400\"><strong><a href=\"https:\/\/en.wikipedia.org\/wiki\/Java_(software_platform)\">For reference<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this Java tutorial, we are going to study What is JDK (Java Development Kit), JRE (Java Runtime Environment) or Java RTE, and JVM (Java Virtual Machine). Moreover, we will discuss the differences between&#46;&#46;&#46;<\/p>\n","protected":false},"author":5,"featured_media":14141,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[3865,5866,5867,7783,7784,15529,15778,15788,15791,15792],"class_list":["post-14128","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java","tag-difference-between-jdk-vs-jre-vs-jvm","tag-how-do-jre-functions","tag-how-do-jvm-functions","tag-jdk-vs-jre","tag-jdk-vs-jre-vs-jvm","tag-what-does-jre-comprise-of","tag-what-is-java-development-kit","tag-what-is-java-runtime-environment","tag-what-is-java-virtual-machine","tag-what-is-java-virtual-machine-jvm"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Difference Between JDK vs JRE vs JVM - DataFlair<\/title>\n<meta name=\"description\" content=\"Difference Between JDK vs JRE vs JVM - 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