Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import android.text.TextUtils;
import java.util.regex.Pattern;

public class Main {
    public static String validateSignUpForm(String email, String password, String passwordRpt) {
        if (isEmpty(email) || isEmpty(password) || isEmpty(passwordRpt)) {
            return "All fields are required";
        }

        if (!isValidEmail(email)) {
            return "Email is invalid type";
        }

        if (!isValidPassword(password)) {
            return "Password should begin with letter, be 6-18 characters "
                    + "long and must contain only letters, numbers, and underscore";
        }

        if (!password.contentEquals(passwordRpt)) {
            return "Passwords should match";
        }

        return null;
    }

    private static boolean isEmpty(String target) {
        return TextUtils.isEmpty(target);
    }

    public static boolean isValidEmail(String target) {
        return android.util.Patterns.EMAIL_ADDRESS.matcher(target).matches();
    }

    public static boolean isValidPassword(String target) {
        return Pattern.compile("^[a-zA-Z]\\w{6,18}$").matcher(target).matches();
    }
}