两种java 99乘法表

public static void main(String[] args) {
        for (int j = 1; j <= 9; j++) {
            for (int k = j; k <= 9; k++) {
                System.out.print(j + " * " + k + " = " + j*k + " ");
            }
            System.out.println();
        }

        for (int j = 1; j <= 9; j++) {
            for (int k = 1; k <= j; k++) {
                System.out.print(k + " * " + j + " = " + j*k + " ");
            }
            System.out.println();
        }
    }