java virtual machine(jvm)

1. 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)

2. 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)