Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

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

public class Main {
    public static boolean isValidUserName(String userName) {
        Pattern p = Pattern.compile("^[\u4E00-\u9FA50-9a-zA-Z_-]{0,}$");
        Matcher m = p.matcher(userName);
        return m.matches();
    }
}