Java正则表达式示例 - 匹配\xhh字符

字符\0xhh匹配十六进制值为0xhh的字符。

示例

以下示例显示了字符匹配的用法。

package com.zaixian;

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

public class CharactersDemo {
   private static final String REGEX = "\\x41";
   private static final String INPUT = "abcAabc";

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

编译并运行上面的程序，这将产生以下结果 -

Match String start(): 3