使用正则表达式替换字符串

import java.util.regex.Matcher;
/*
NowJava.com - 时  代  Java
*/

import java.util.regex.Pattern;


public class Main {

  private static String REGEX = "dog";

  private static String INPUT = "The dog says meow. " + "All dogs say meow.";

  private static String REPLACE = "cat";


  public static void main(String[] args) {

    Pattern p = Pattern.compile(REGEX);


    // get a matcher object

    Matcher