public class MultiplicationTable {
    public static void main(String[] args) {
        int[][] table = new int[9][9];
        for (int i = 0; i < 9; i++) {
            for (int j = 0; j < 9; j++) {
                table[i][j] = (i + 1) * (j + 1);
            }
        }
        for (int i = 0; i < 9; i++) {
            for (int j = 0; j < 9; j++) {
                System.out.printf("%2d ", table[i][j]);
            }
            System.out.println();
        }
    }
}

输出结果：

 1  2  3  4  5  6  7  8  9 
 2  4  6  8 10 12 14 16 18 
 3  6  9 12 15 18 21 24 27 
 4  8 12 16 20 24 28 32 36 
 5 10 15 20 25 30 35 40 45 
 6 12 18 24 30 36 42 48 54 
 7 14 21 28 35 42 49 56 63 
 8 16 24 32 40 48 56 64 72 
 9 18 27 36 45 54 63 72 81