1 //选择结构
2 public class Main
3 {
4 public static void main(String[] args)
5 {
6 Scanner scanner = new Scanner(System.in);
7 System.out.println("请输入内容：");
8 String s = scanner.nextLine();
9 if(s.equals("Hello"))//equals判断字符串是否相等
10 {
11 System.out.println("Hello");
12 }
13 System.out.println("end");
14 scanner.close();
15 }
16 }
17
18
19 public class test
20 {
21 public static void main(String[] args)
22 {
23 Scanner scanner = new Scanner(System.in);
24 String s = scanner.nextLine();
25 switch(s)
26 {
27 case "袁天罡":
28 System.out.println("参见大帅");
29 break;
30 case "李星云":
31 System.out.println("天暗星");
32 break;
33 case "姬如雪":
34 System.out.println("思如雪");
35 break;
36 default:
37 System.out.println("你干嘛");
38 break;
39 }
40 scanner.close();
41 }
42 }
