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What is difference between jdk and JRE?

Anonymous

∙ 15y ago

Updated: 9/13/2023

Age old question. :)

Simply Put:

- If you need to execute any java program you need JRE (as the name says "Runtime Env").

- If you need to compile some java code you ll need JDK (as the name says "Development Kit").

One more thing to be noted is JRE will always be shipped with JDK because as I mentioned earlier JDK compiles the code, so if you want to execute the compiled code you need JRE.

Hope this helps.

.

The "JDK" is the Java Development Kit. I.e., the JDK is bundle of software that you can use to develop Java based software. The "JRE" is the Java Runtime Environment. I.e., the JRE is an implementation of the Java Virtual Machine which actually executes Java programs.

Typically, each JDK contains one (or more) JRE's along with the various development tools like the Java source compilers, bundling and deployment tools, debuggers, development libraries, etc.

Wiki User

∙ 15y ago

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