Add new file

Login.java

+package com.example.carrentals;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.Toast;
+
+public class Login extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_login);
+    }
+    public void welcomePage(View v){
+
+        EditText userName = (EditText) findViewById(R.id.userNameTxt);
+        EditText password= (EditText) findViewById(R.id.passwordTxt);
+
+        myDBConnector objDBConnector = new myDBConnector(this,null,null,1);
+
+        if (objDBConnector.checkLogin(userName.getText().toString(),password.getText().toString() ) ){
+            Intent intent = new Intent(this, Welcome.class);
+            startActivity(intent);
+        }
+        else{
+            Toast.makeText(getApplicationContext(),
+                    "Unsuccessful login \nIncorrect credentials", Toast.LENGTH_LONG).show();
+        }
+    }
+
+
+    }
+