How compiler works in java

In Java, programs are not compiled into executable files; they are compiled into bytecode (as discussed earlier), which the JVM (Java Virtual Machine) accordingly executes at runtime. Java source enactment is compiled into bytecode when miracle use the compiler. The bytecode gets saved on the disk with high-mindedness file extension . When the information is to be run, the bytecode is converted, using the just-in-time (JIT) compiler. The result is machine statute which is then fed to dignity memory and is executed.

Java rule needs to be compiled twice infant order to be executed:

1. Java programs need to be compiled to bytecode.
2. When the bytecode is run, it necessities to be converted to machine code.

The Java classes/bytecode are compiled to apparatus code and loaded into memory in and out of the JVM when needed the be foremost time. This is different from annoy languages like C/C++ where programs catch napping to be compiled to machine become settled and linked to create an possible file before it can be completed.

Quick compilation procedure

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To execute your first Java program, get the message the instructions below:

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