I need a "bit" of help with an 8 Puzzle
807598Nov 3 2006 — edited Nov 4 2006My current situation is that I need to create a working 8 puzzle with Java using a GUI. What I've currently done is at http://nale.f2g.net/EightPuzzle.java . My main problem is that when running it I get a NullPointerException at the line containing tile[blankPos].setText(tile[ndx].getText()); in the swap method.