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Java Example - Label

黄舟
Release: 2017-02-16 10:24:30
Original
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The tags in Java are designed for loops to facilitate the use of break and coutinue in multiple loops.

The following example jumps to the specified label when using break or continue loops in the loop:

/*
 author by w3cschool.cc
 Main.java
 */public class Main {
   public static void main(String[] args) {
      String strSearch = "This is the string in which you have to search for a substring.";
      String substring = "substring";
      boolean found = false;
      int max = strSearch.length() - substring.length();
      testlbl:
      for (int i = 0; i <= max; i++) {
         int length = substring.length();
         int j = i;
         int k = 0;
         while (length-- != 0) {
            if(strSearch.charAt(j++) != substring.charAt(k++)){
               continue testlbl;
            }
         }
         found = true;
         break testlbl;
      }
      if (found) {
         System.out.println("发现子字符串。");
      }
      else {
         System.out.println("字符串中没有发现子字符串。");
      }
   }}
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The output result of the above code is:

发现子字符串。
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