代碼如下：
package com.hongyuan.test;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class RegexTest {
public static void main(String[] args) {
String str="<html><head><title>regex test</title></head><body><p>this is a simle regex test</p></body></html>";
//拆分字符串
String[] splitStr=Pattern.compile("[</?|>]").split(str);
for(int i=0;i<splitStr.length;i++){
System.out.print(splitStr[i]+" ");
}
System.out.println();
//判斷字符串是否與制定模式匹配
boolean isMatching = Pattern.compile("^<(\\w*)>.*</\\1>$").matcher(str).matches();
System.out.println(isMatching);
//替換字符串
String repStr=Pattern.compile("<(/?)p>").matcher(str).replaceAll("<$1h1>");
System.out.println(repStr);
//提取字符串
Matcher m = Pattern.compile("<title>(.*)</title>").matcher(str);
while(m.find()){
System.out.println(m.group(1));
}
}
}
