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 isLetter(String str) {
        if (str == null || str.length() < 0) {
            return false;
        }
        Pattern pattern = Pattern.compile("[\\w\\.-_]*");
        return pattern.matcher(str).matches();
    }
}