I read Hello Android book and I wrote a part of a Sudoku program but when I click on the New Game button and I select one of options and I want to write a number in the tile, the program stops and shows this message:
“Unfortunately, Sudoku has stopped.”
Why am I getting this error? How do I solve this?
I dot know which part of the program has problem because of this, I’ve uploaded the program, please download this and see what’s the problem?