Java 范例 - 标签 (Label)
Java 中的标签是为循环设计的，是为了在多重循环中方便的使用 break 和coutinue
下面的代码在循环中使用 break 或 continue 循环时跳到指定的标签处
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"); } } }
编译运行以上 Java 代码，输出结果如下
发现子字符串