java.util.regex.Matcher.reset(CharSequence input)方法

java.util.regex.Matcher.reset(CharSequence input)方法使用新的输入序列重置此匹配器。

声明

以下是java.util.regex.Matcher.reset(CharSequence input)方法的声明。

public Matcher reset(CharSequence input)

参数

• input - 新的输入字符序列。

返回值

这个匹配器。

示例

以下示例显示了java.util.regex.Matcher.reset(CharSequence input)方法的用法。

package com.zaixian;

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());   
      }     
   }
}

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
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