public matrix(int matrix[][]) { this.matrix = matrix; }

public void solver() {

if (!SolverMatrix()) { System.out.println("This can't be solved."); }

} public String toString(){ String result = ""; for (int row = 0; row < 9; row++) { for (int col = 0; col < 9; col++) { result += matrix[row][col] + " "; } result += "/n"; System.out.println(); } return result; }

how do i call to string ? so it can print the result?