Java tutorial
//package com.java2s; import android.content.Context; import android.widget.Toast; public class Main { public static boolean isValidSignUp(String username, String password, String confirmPassword, Context thisActivtiy) { //One of the field is left blank if (username.equals("") || password.equals("") || confirmPassword.equals("")) { Toast.makeText(thisActivtiy, "Please fill in all fields.", Toast.LENGTH_SHORT).show(); return false; } //The info is not of the right format //Need to finish this later else if (false) { Toast.makeText(thisActivtiy, "Please fill in all fields.", Toast.LENGTH_SHORT).show(); return false; } //The passwords entered do not match else if (!password.equals(confirmPassword)) { Toast.makeText(thisActivtiy, "The passwords you entered do not match.", Toast.LENGTH_SHORT).show(); return false; } else return true; } }