package com.regex;

/**

* @Author: lenovo

* @Date: 2020/2/2 21:46

* @Description:

*

* 详情参见：https://www.cnblogs.com/expiator/p/12250598.html

*/

public class RegexDemo {

public static void regex1(){

String str="abcdddabc";

String regex=".*d+.*";

if (str.matches(regex)){

System.out.println(true);

}

}

public static void regex2(){

String str="abcdefg";

String regex=".*efg";

if (str.matches(regex)){

System.out.println(true);

}

}

public static void regex3(){

String str="a";

String regex="\\w";

if (str.matches(regex)) {

System.out.println(true);

}

}

public static void regex4(){

String str="abdf1459";

String regex="[a-z]{4}[1-9]{4}";

if (str.matches(regex)) {

System.out.println(true);

}

}

public static void regex6(){

String str="catdog";

String regex="^cat$";

String regex2="^cat.*";

String regex3=".*dog$";

boolean isMatch1=str.matches(regex);

boolean isMatch2=str.matches(regex2);

boolean isMatch3=str.matches(regex3);

System.out.println(isMatch1+","+isMatch2+","+isMatch3);

}

}