Hi

I am creating a application to extract metrics when a class name is
given. Now i need to allow the program to enter the jar file and the
program should extract all the classes and sum the individual metrics
for each class and display it. How do i extract .jar files in java
source code so that i can get access to the individual classes in the
jar file and then run my program on those individual classes.

I am a novice java programmer and any help would be appreciated

thanks

Nimesh