How to make a modular program in java

hello friends,
i want to know that how i can make my program in a modular way.
Thanks in advance
Rakesh

hello sir,
thanks to notice me.
modular program means, i have a large program which contains about 1500 lines. now i want to subdivide this program in multiple files and after call all files in a single main file . and want to run overall program from a single main file.
regards,
Rakesh

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Attachments:
226838.vi ‏19 KB

How to make a modular program in java

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