使用预定义的字符类

/**来 自 时代Java**/

import java.util.regex.Matcher;

import java.util.regex.Pattern;


public class Main {

  public static void main(String[] args) {

    Pattern pattern = Pattern.compile("c.t");

    Matcher matcher = pattern.matcher("cat");

    if (matcher.matches())

      System.out.println("Match.");

    else

      System.out.println("Does not match.");

  }


}/**from N o w  J a v a  .   c o m**/