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Need Help With StackOverFlow Error - TicTacoToe Java

tic tac toe stack

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#1 ellangog


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Posted 19 January 2012 - 09:22 PM

I am working on creating a tic tac toe game that allows the user to play against a computer. When the user selects a button on the board, the AI will detect if there is a possible three combo. If there is no threat detected, than the computer will pick a spot randomly on the board to move.

However, my problem is when I make a certain move, the computer sometimes places a move and sometimes get skipped. I was wondering how to fix this, my randomMove() method is displayed below.

Would this situation call for a recursive method (my teacher briefly told me this might be necessary) or otherwise? If it is recursive, can you explain it? Thanks for any help!

More specifically I get this error sometimes:

Exception in thread "AWT-EventQueue-0" java.lang.StackOverflowError

public void RandomMove()
    Random x = new Random();
    int y = 1 + x.nextInt(9);
    if (buttons[y].getText().equals("O") || buttons[y].getText().equals("X")) {
    else {

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#2 fread


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Posted 20 January 2012 - 03:53 AM

I'm not 100% sure but, it appears your 'if condition' evaluates to truth to often, thus making more recursive calls than the stack could handle. Have a read.
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