Java java.util.regex.Matcher.reset()用法及代碼示例

描述

這個java.util.regex.Matcher.reset(CharSequence input)方法 使用新的輸入序列重置此匹配器。

聲明

以下是聲明java.util.regex.Matcher.reset(CharSequence input)方法。

public Matcher reset(CharSequence input)

參數

• input─ 新的輸入字符序列。

返回值

這個匹配器。

示例

下麵的例子展示了 java.util.regex.Matcher.reset(CharSequence input) 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 INPUT1 = "fooabfoob";
   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());   
      }     
      
      matcher.reset(INPUT1);
      System.out.println("RESET");
      
      while(matcher.find()) {
         //Prints the offset after the last character matched.
         System.out.println("First Capturing Group, (a*b) Match String end():"+matcher.end());   
      }     
   }
}

讓我們編譯並運行上麵的程序，這將產生以下結果——

First Capturing Group, (a*b) Match String end():6
First Capturing Group, (a*b) Match String end():12
First Capturing Group, (a*b) Match String end():17
RESET
First Capturing Group, (a*b) Match String end():8