java.util.regex.Matcher.toMatchResult()方法

java.util.regex.Matcher.toMatchResult()方法將此匹配器的匹配狀態作為一個MatchResult物件返回。 結果不受在此匹配器上執行的後續操作的影響。

宣告

以下是java.util.regex.Matcher.toMatchResult()方法的宣告。

public MatchResult toMatchResult()

返回值

MatchResult與此匹配器的狀態。

範例

以下範例顯示了java.util.regex.Matcher.toMatchResult()方法的用法。

package com.yiibai;

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

public class MatcherDemo {
   private static final String REGEX = "(.*)(\\\\d+)(.*)";
   private static final String INPUT = "This is a sample Text, 1234, with numbers in between.";

   public static void main(String[] args) {
      // create a pattern
      Pattern pattern = Pattern.compile(REGEX);

      // get a matcher object
      Matcher matcher = pattern.matcher(INPUT); 

      if(matcher.find()) {
         //get the MatchResult Object 
         MatchResult result = matcher.toMatchResult();

         //Prints the offset after the last character of the subsequence captured by the given group during this match.
         System.out.println("Second Capturing Group - Match String - end(1): "+result.end(1));         
      }
   }
}

編譯並執行上面的程式，這將產生以下結果 -

Second Capturing Group - Match String - end(1): 26