Java正則貪婪量詞[X{n,}]匹配

貪心量詞[X{n,}]匹配至少出現n次的X.

示例
以下示例顯示了貪婪量詞的用法。

package com.zaixian;

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

public class GreedyQuantifierDemo {
   private static final String REGEX = "T{2,}";
   private static final String INPUT = "abcdTatTTfgfgTTTW";

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

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

      while(matcher.find()) {
         //Prints the start index of the match.
         System.out.println("Match String start(): "+matcher.start());
      }
   }
}

編譯並運行上面的程式，這將產生以下結果 -

Match String start(): 7
Match String start(): 13