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Trying to test all programs in a package

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I have a package that contains 100s of programs it it.  They all have a main function which means they can be invoked and ran... they each output to std out
i need a program that runs all of them... any ideas how I would do this?

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Eclipse IDE VI Editor Java
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You mean beyond writing 100 tests? WOuldn't you need to do that to know if the output is right?

Tip: System has a method setOut() so you can set a different stream like a ByteArrayOutputStream so you can read the output in an automated way.
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