What happens when java program starts?

Question

Recently have been touched Java classloaders and suddenly recognized that do not fully understand what happens step-by-step when someone calls

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Answer 1

Whenever you compile a Java program the following steps takes place

1. First the Class Loader loads the class into the JVM.
2. After giving the command javac filename.java the compiler checks for compile time errors and if everything is fine then it will generate the .Class files(byte code).

This will be the first phase.

Later the interpreter checks for the runtime errors and if everything is fine without exceptions then the interpreter converts the byte code to executable code.

First phase in java is done by the JIT compiler(Just In Time).