java基础（第五章课后作业）04

Posted 2020-10-14

 1 package com.xunhuan;
 2 
 3 import java.util.Scanner;
 4 
 5 public class ZuoYe04 {
 6 
 7     public static void main(String[] args) {
 8         
 9             Scanner meng00 = new Scanner(System.in);
10             int num=0;            //定义int变量
11             String day="" ;        //定义day变量
12             
13                 //do... wuhile循环
14             do{
15                 System.out.println("请输入0-7的数字:"); //输入
16                 num = meng00.nextInt();
17                 //if判断
18                 if (num>7||num<0) {
19                     System.out.println("输入有误!");// 输入大于7 或 小于0 输入有误
20                    break;
21                 }else if(num==0){
22                     System.out.println("结束");// 输入0结束
23                     break;
24                     
25                 }else{
26                         //if判断 否则else
27                 switch(num){
28                     case 1: 
29                         day="今天是MON";
30 
31                         break;
32                     case 2: 
33                         day="今天是TUE";
34                        
35                         break;
36                     case 3: 
37                         day="今天是WED";
38                        
39                         break;
40                     case 4: 
41                         day="今天是THU";
42                        
43                         break;
44                     case 5: 
45                         day="今天是FRI";
46                         break;
47                     case 6: 
48                         day="今天是SAT";
49                         break;
50                     case 7: 
51                         day="今天是SUN";
52                         break;
53                 
54                 }
55                 System.out.println(day);
56                 }
57                 
58                 }while(num!=0);//不等于0
59 
60     
61     }
62 
63 }