What’s the difference between JDK, JRE, and JVM?
The JVM is the engine that runs Java bytecode. It provides platform independence by abstracting the underlying OS and hardware. When you compile Java code (.java
), it turns into bytecode (.class
), which the JVM then executes. Each OS has its version of JVM, but the bytecode remains the samethis is how Java achieves its famous “Write Once, Run Anywhere” capability.
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