/*
 * File:RegExp.java
 * User:iChochy
 * URL:https://ichochy.com
 * Copyright (c) 2020
 * Date:2020/09/07 18:11:07
 */

package com.ichochy.example;

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

public class RegExp {
 public static void main(String[] args) {
 String input = "https://ichochy.com";
 //正則表達(dá)式，(.+)代表一個(gè)或多個(gè)字符
 String regex = "https://.+.com";
 Boolean flag = Pattern.matches(regex,input);
 System.out.println(flag); //全文匹配返回：true
 }
}

/*
 * File:RegExp.java
 * User:iChochy
 * URL:https://ichochy.com
 * Copyright (c) 2020
 * Date:2020/09/07 18:11:07
 */

package com.ichochy.example;

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

public class RegExp {
 public static void main(String[] args) {
 String input = "https://ichochy.com";
 //正則表達(dá)式，(.+)代表一個(gè)或多個(gè)字符
 String regex = "https://.+.com";
 Pattern pattern = Pattern.compile(regex);//編譯表達(dá)式
 Matcher matcher = pattern.matcher(input);//匹配表達(dá)式
 System.out.println(matcher.matches());//全文匹配返回：true
 }
}

/*
 * File:RegExp.java
 * User:iChochy
 * URL:https://ichochy.com
 * Copyright (c) 2020
 * Date:2020/09/07 18:11:07
 */

package com.ichochy.example;

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

public class RegExp {
 public static void main(String[] args) {
 String input = "我的網(wǎng)站是：https://ichochy.com，你知道嗎？";
 //正則表達(dá)式，(.+)代表一個(gè)或多個(gè)字符
 String regex = "https://.+.com";
 Pattern pattern = Pattern.compile(regex);//編譯表達(dá)式
 Matcher matcher = pattern.matcher(input);//匹配表達(dá)式
 System.out.println(matcher.find());//查找匹配返回：true
 System.out.println(matcher.matches());//全文匹配返回：false
 System.out.println(matcher.find());//再次查找匹配返回：false
 matcher.reset();//重置匹配器
 System.out.println(matcher.find());//重置查找返回：true
 }
}

/*
 * File:RegExp.java
 * User:iChochy
 * URL:https://ichochy.com
 * Copyright (c) 2020
 * Date:2020/09/07 18:11:07
 */

package com.ichochy.example;

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

public class RegExp {
 public static void main(String[] args) {
 String input = "我的網(wǎng)站是：https://ichochy.com，你知道嗎？";
 String regex = "(https://)(.+)(.com)";//分組表達(dá)式
 Pattern pattern = Pattern.compile(regex);
 Matcher matcher = pattern.matcher(input);
 if(matcher.find()){//查找匹配成功
 //匹配的信息：https://ichochy.com
 System.out.println(matcher.group().toString());
 //groupCount 組數(shù)
 for (int i = 0; i < matcher.groupCount(); i++) {
 //每組匹配的信息，注意：序號(hào)是從 1 開始
 System.out.println(matcher.group(i+1));
 }
 }

 }
}