Matrice.java

class Matrice {
  
    public static void main(String[] args) {
        int[][] matrice = { { 12, 4, 23, 1 }, { 16, 8, 0, 21 }, { 1, 13, 2, 17 } };
        for (int i = 0; i < matrice.length; i++) {
            for (int j = 0; j < matrice[i].length; j++) {
                System.out.print("matrice[" + i + "," + j + "]=" + matrice[i][j] + "\t");
            }
            System.out.print("\n");
        }
    }
  
}