Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.util.regex.Pattern;

public class Main {
    public static boolean isIdOk(String Idstr) {
        //account
        String regex = "[\u4e00-\u9fa5_a-zA-Z0-9_]{2,30}";
        Pattern pattern = Pattern.compile(regex);
        return pattern.matcher(Idstr).matches();
    }
}