java 基础，使用正则表达式从字符串中获取电话号码

package com.zhengyanfeng.regex;

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

public class RegexTest {

public static void main(String[] args) {

String s = "我的手机号是18837112195，曾经用过18888888888，还用过18812345678";
String regex = "1[35789]\\d{9}";
Pattern p = Pattern.compile(regex);
Matcher m = p.matcher(s);

while (m.find()) { //一定需要先查找再调用group获取电话号码
System.out.println(m.group());
}
}

}