What is the difference between jdk and jre?

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What is the difference between JDK and JRE?
What are their roles and when should I use one or the other?
Apr 20, 2018 in Java by sophia
• 1,400 points
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1 answer to this question.

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JRE: It stands for Java Runtime Environment. It is basically the Java Virtual Machine where your Java programs run on. It also includes browser plugins for Applet execution.

JDK: It's the full featured Software Development Kit for Java, including JRE, and the compilers and tools (like JavaDoc, and Java Debugger) to create and compile programs.

Usually, when you only care about running Java programs on your browser or computer you will only install JRE. It's all you need. On the other hand, if you are planning to do some Java programming, you will also need JDK.

Sometimes, even though you are not planning to do any Java Development on a computer, you still need the JDK installed. 

answered Apr 20, 2018 by Akrati
• 3,150 points

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