Compilation and Execution of java program(JVM architecture)

                         

Ø Source Code:- is a code written by a programmer(coder).

Ø Java Compiler(javac):-It compiles code of java and convert it into .class file.

Ø Byte Code Verifier:-Byte Code Verifier is used in JVM(java virtual machine after class loader). It filters code and remove unwanted code from .class file. Hence, it increases the security of java program.

Ø Execute Program:-Os specific JVM creates a space in ram and then several function comes in action like class loader, byte code verifier, Execute Engine etc.

Ø Os Specific “Object code”:-Object code is nothing but machine code.

There are different memory segments .

When a program is loaded into memory it is organized into three areas of memory called segments.All have their different working.

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Topic.

First Program of java and Explanation.