Im a writing a sudoku solver in JAVA.

What should i write in these 3 following private functions:

The functions check whether the given value "val" fits in the cell by looking at the row, column and box.

The functions are used here:

How do you write the 3 functions? or how do you check validate the row, column and box for a sudoku solver?

121 checks if val is an acceptable value for the row i 122 private boolean checkRow(int val, int i) t TODO 123 124 125 126 checks if val is an acceptable value for the column j 127 private boolean checkcol(int val, int j) t TODO 128 130 131e checks if val is an acceptable value for the box around 132 the cell at row i and column j 133 134e private boolean checkBox (int val, int i, int j) t TODO 135 136