Java打印九九乘法表

Posted 2020-08-22

 1 package com.czgo;
 2 
 3 /**
 4  * 九九乘法表
 5  * 
 6  * @author AlanLee
 7  *
 8  */
 9 public class Print99 {
10 
11     public static void main(String[] args) {
12         
13         System.out.println("99乘法表");
14         System.out.print("    ");
15         // 首先打印出第一行1-9
16         for (int i = 1; i <= 9; i++) {
17             System.out.print(i + "    ");
18         }
19         System.out.println();
20         for (int i = 1; i <= 9; i++) {
21             // 每一行打印出当前是第几行
22             System.out.print(i + "    ");
23             for (int j = 1; j <= 9; j++) {
24                 if (j <= i) {
25                     // 打印出计算结果
26                     System.out.print(i + "*" + j + "=" + i * j + "    ");
27                 }
28             }
29             // 每执行完一次循环后换行
30             System.out.println();
31         }
32     }
33 
34 }