continuewithlabel.java

来自「java程序设计 清华出版社 孙燮华老师编写的程序源代码」· Java 代码 · 共 26 行

//ContinueWithLabel.java
public class ContinueWithLabel{
  public static void main(String[] args){
    String search = "Look for a substring in me";
    String substring = "sub";
    boolean foundIt = false;
    int max = search.length()-substring.length();
    
    test:
    for(int i = 0;i<=max;i++){
      int j = i, k = 0, n = substring.length();
      
      while (n-- != 0) {
        if(search.charAt(j++) != substring.charAt(k++)){
          continue test;  //跳到test所标识的for循环继续进行
        }
      }
      
      foundIt = true;
      break test;
    }
    System.out.println(foundIt ? "Found it": "Didn't find it");
  }
}