Java:label的使用（while循环）

 1 package java_test;
 2 
 3 public class labelWhile {
 4 
 5     public static void main(String[] args) {
 6         int i = 0;
 7         outer: while (true) {
 8             System.out.println("Outer while loop");
 9             while (true) {
10                 i++;
11                 System.out.println("i= " + i);
12                 if (i == 1) {
13                     System.out.println("continue");
14                     continue;
15                 }
16                 if (i == 3) {
17                     System.out.println("continue outer");
18                     continue outer;
19                 }
20                 if (i == 5) {
21                     System.out.println("break");
22                     break;
23                 }
24                 if (i == 7) {
25                     System.out.println("break outer");
26                     break outer;
27                 }
28             }
29         }
30     }
31 }

 1 Outer while loop
 2 i= 1
 3 continue
 4 i= 2
 5 i= 3
 6 continue outer
 7 Outer while loop
 8 i= 4
 9 i= 5
10 break
11 Outer while loop
12 i= 6
13 i= 7
14 break outer