Need to clear the terminal

Hey, me and my friend are writting a program which I will eventually put into a nice GUI but for the beginning develpmental stages I running it in command line. I am using BlueJ to program, I am not sure it matters, but the point I am getting to is, I have spend nearly a week pulling my hair our trying to something I thought would be as simple as some of the other languages. I just want to clear the screen of the terminal and I have searched the web near and far and tried everything i could find and I still came out with nothing. So if someone could tell me how to clear the screen and put the cursor back in the upper-left hand corner I would be incredible grateful.

I dunno that i neccesarially need to be able to do it because like DrClap said it is more important to make the GUI look nice but it was more of a this should be easy... why isn't and how can I do it. I appreciate the help though but I am using windows Xp so the I can't get the ASCI thing to work and the brute force thing puts the cursor in the bottom left hand corner instead of the top... Is there a command to make the cursor go back to the top?

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I have question.
I saw your program and my program whatever I submit in the discussion earlier.
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================
clear status from ORA_PAX_AGT_PRT_TOPVAR *** Nothing deletes
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In My program
================
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