How to take an object from a class to another activity? - android-studio

Question

I have a login app that has to have a user class with the user information in an object. But now I'm trying to figure out how I could compare the user object with the username and password the user inputs to see if it is correct. So I need to be able to see for example if the user inserts "Jason" into the username txt and "Sword" into the password txt I need to see if it is correct and matches the one in the user class. Does anyone know how I would go about doing so? Any help would be muchly appreciated I'm just really stuck.
public class User {
static String userName;
static String password;
static String favColor;
public User(String userName, String password, String favColor){
this.userName = userName;
this.password = password;
this.favColor = favColor;
}
public class UserGroup{
// Created user Objects for each user
User user1 = new User ("Jason", "Sword", "Red");
User user2 = new User ("Billy", "Dinosaur", "Blue");
User user3 = new User ("Zack", "Elephant", "Black");
User user4 = new User ("Trini", "Tiger", "Yellow");
User user5 = new User ("Kimberly", "Bird", "Pink");
}
}
logInBt.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
String userET = userEditText.getText().toString();
String userPassword = passwordEditText.getText().toString();
UserGroup users = new UserGroup();
if (userET.equals(users.user1.userName)&& userPassword.equals(users.user1.password ){
// write here what you want user 1 to do after login
}else if (userET.equals(users.user2.userName)&& userPassword.equals(users.user2.password ){
// write here what you want user 2 to do after login
}
}
});
}
}

Answer 1

you have to make the user Class filed static to reached it any where
or you can use instate of it and i will use instate to do not change your code
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final Button logInBt = findViewById(R.id.buttonLogIn);
final EditText userEditText = findViewById(R.id.editTextTextPersonName);
final EditText passwordEditText = findViewById(R.id.editTextTextPassword);
logInBt.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
String userET = userEditText.getText().toString();
String userPassword = passwordEditText.getText().toString();
UserGroup users = new UserGroup();
if (userEt.equals(users.user1.userName)&& userPassword.equals(users.user1.password ){
// write here what you want user 1 to do after login
}else if (userEt.equals(users.user2.userName)&& userPassword.equals(users.user2.password ){
// write here what you want user 2 to do after login
}
}
});
do else if to check all the user and you can change it to a list of users to make it easer