（一）、九九乘法表

 1 package com.gen;
 2 
 3 public class Multi99table {
 4     public static void main(String args[]) {
 5         for (int i = 1; i <= 9; i++) {
 6             for (int j = 1; j <= i; j++) {
 7                 if (j <= i) {
 8                     System.out.print(j + "*" + i + "=" + j * i + "  ");
 9                 }
10             }
11             System.out.print("\n");
12         }
13     }
14 }