输出9*9口诀 输出9*9乘法表

Posted 2021-12-12 zjulanjian

题目：输出9*9口诀

1 * 1 = 1
1 * 2 = 2 2 * 2 = 4
1 * 3 = 3 2 * 3 = 6
...
1 * 9 = 9 2 * 9 = 18 ...

程序分析：分行与列考虑，共9行9列，i控制行，j控制列。

public class 第十六题输出乘法口诀 {
    public static void main(String[] args) {
        /*
        1 * 1 = 1
        1 * 2 = 2 2 * 2 = 4
        1 * 3 = 3 2 * 3 = 6
        ...
        1 * 9 = 9 2 * 9 = 18 ...
        */
        for(int i = 1; i < 10; i ++) {
            for( int j = 1; j <= i; j++) {
                System.out.print(i +" * "+j+" = "+i*j + "  ");
            }
            System.out.println();
        }
    }
}