How can I open a program using Java and then perform certain tasks with it?

For example, and this is just an example, I want to write a Java program that opens MS Paint and then manipulates that program. This can be useful to automate certain tasks.
My question is whether this can be done writing Java code and if so how? If not possible, would I need to use a scripting language instead?

write a Java program that opens MS Paint and then
manipulates that program. This can be useful to
automate certain tasks."manipulates" is a too wide term. Let me narrow down:
1. If you want to open (run) the program and then shut (kill) it down it is possible and fairly trivial to do in java. Look up Runtime and Process classes in java.lang package
2. If you want to open the program and edit some image/document in the opened program. It is very difficult in java. May be possible... using some Java/COM bridge, assuming your native program is COM/Active-x compliant. Note: these things go beyond the boundary of JVM and needs to interact with host OS and involves shared memory, ipc and all "low level" stuffs.
If you want to be able to play around with these COM/Activex apps- choose .NET instead :-)
3) You can open the program from java and pass it some command line arg as in (1) above and then the program will load that document/image at startup automatically. You may then edit the doc/image thru that program itself. However, Java is not doing anything for you here, other than just starting off your native mspaint.exe ot notepad.exe.
-BJ
Message was edited by:
Bimalesh

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