View difference between Paste ID: dKthNgQi and sY8CQk6K

 package com.example.admin.mytask;
 
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
 import android.view.View;
 import android.widget.EditText;
 import android.widget.Toast;
 
 
 public class MainActivity extends AppCompatActivity implements View.OnClickListener {
     final String USERNAME_DB = "userAA", USERPASS_DB = "pasS123";
     EditText txtUser, txtPass;
 
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
         setPointer();
     }
 
     public void setPointer() {
         txtUser = findViewById(R.id.txtUser);
         txtPass = findViewById(R.id.txtPass);
     }
 
 
     @Override
     public void onClick(View view) {
         String userName = txtUser.getText().toString();
         String userPass = txtPass.getText().toString();
 
         switch (view.getId()) {
             case R.id.btnLogin:
                 if (userName.equals(USERNAME_DB)) {
                     if (userPass.length() == 0) {
                         Toast.makeText(MainActivity.this, getString(R.string.loginErrorPassNull), Toast.LENGTH_SHORT).show();
                     } else if (userPass.equals(USERPASS_DB)) {
                         Toast.makeText(MainActivity.this, getString(R.string.loginSuccess), Toast.LENGTH_SHORT).show();
                     } else {
                         Toast.makeText(MainActivity.this, getString(R.string.loginErrorPassMismatch), Toast.LENGTH_SHORT).show();
                     }
 
                 } else {
                     Toast.makeText(MainActivity.this, getString(R.string.loginErrorUserMismatch), Toast.LENGTH_SHORT).show();
                 }
 
                 break;
 
             case R.id.btnRegister:
                 if (userName.length() == 0) {
                     Toast.makeText(MainActivity.this, getString(R.string.loginErrorUserNull), Toast.LENGTH_SHORT).show();
                     break;
                 }
                 if (userPass.length() == 0) {
                     Toast.makeText(MainActivity.this, getString(R.string.loginErrorPassNull), Toast.LENGTH_SHORT).show();
                     break;
                 }
 
 
                 //TODO create a new username <--> md5 password LinkedHashMap
 
                 break;
         }
     }
 }