java.util.regex.Matcher.find() 方法

描述

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。

声明

以下是 java.time.Matcher.find() 方法的声明。

public boolean find()

返回值

当且仅当输入序列的子序列与此匹配器的模式匹配时才为 true。

示例

下面的例子展示了 java.time.Matcher.find() 方法的用法。

package com.tutorialspoint;

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);
      
      // get a matcher object
      Matcher matcher = pattern.matcher(INPUT);
      
      while(matcher.find()) {
         //Prints the offset after the last character matched.
         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));  
      }
   }
}

让我们编译并运行上面的程序，这将产生以下结果 −

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

❮ java 正则表达式 - Matcher 匹配器