无涯教程-Java 正则 - Matcher boolean find函数

java.time.Matcher.find()方法尝试查找与模式匹配的输入序列的下一个子序列。

boolean find() - 声明

以下是 java.time.Matcher.find()方法的声明。

public boolean find()

boolean find() - 返回值

当且仅当输入序列的子序列匹配此匹配器的模式时，才返回true。

boolean find() - 示例

下面的示例显示java.time.Matcher.find()方法的用法。

package com.learnfk;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class MatcherDemo {
   private static String REGEX = "(a*b)(foo)";
   private static String INPUT = "aabfooaabfooabfoob";
   private static String REPLACE = "-";
   
   public static void main(String[] args) {
      Pattern pattern = Pattern.compile(REGEX);
      
      //获取匹配器对象
      Matcher matcher = pattern.matcher(INPUT);
      
      while(matcher.find()) {
         //在匹配的最后一个字符之后打印偏移量。
         System.out.println("First Capturing Group, (a*b) Match String end(): "+matcher.end());    
         System.out.println("Second Capturing Group, (foo) Match String end(): "+matcher.end(1));  
      }
   }
}

让无涯教程编译并运行以上程序，这将产生以下输出-

First Capturing Group, (a*b) Match String end(): 6
Second Capturing Group, (foo) Match String end(): 3
First Capturing Group, (a*b) Match String end(): 12
Second Capturing Group, (foo) Match String end(): 9
First Capturing Group, (a*b) Match String end(): 17
Second Capturing Group, (foo) Match String end(): 14

参考链接

https://www.learnfk.com/javaregex/javaregex-matcher-find.html