what is java virtual machin(jvM)

JAVA VIRTUAL MACHINE

JAVA VIRTUAL MACHINE  is a software that work on machine that is install on any computer that  interpreter   class files .JVM create the environment on the machine. JVM create environment for the interpreter for bytecode  .JVA Interpreter the bytecode and according to machine code  generate the  machine .JVM is  an abstract machine that provides the run time environment  in which bytecode  can be JVM plays the important role to making the java portable.it provides the layer of abstraction between the compiled  java program and the hardware platform and the operating system.

HOW TO WORK JAVA PROGRAM.

PROGRAM↔COMPILED---BYTECODE---JVM—INTERPRETER----MACHINE CODE

When JVM program compiled .  it generate the  bytecode and bytecode is class files it is independent and after create bytecode JVM interpreter the bytecode and generate the machine code.

.Operations in java program

OPERATION

• Loads the code
• Verifies the code
• Execute the code
• Provide the runtime environment.
• How to jvm works

How to loads the cloass(class loader)

It loads the class files .THREE kind of the class loaders  one is boot strap and other is extension  and other one is  application .Boot strap loads the (art.jar files) and extension  it loads the classes and libraries from the extension folder and system/application lads the class from ware you set  the class path when write the java program.

• What is Java.Why Use Java? lecture............. 1.
• Feature of Java programing lecture................ 2.
• WHAT IS JVM(JAVA VIRTUAL MACHIN................................3)

JVM(java virtual machine)