diff --git a/app/src/main/java/com/example/dcav2gui/MainActivity.java b/app/src/main/java/com/example/dcav2gui/MainActivity.java
index c751cad..b76fdf7 100644
--- a/app/src/main/java/com/example/dcav2gui/MainActivity.java
+++ b/app/src/main/java/com/example/dcav2gui/MainActivity.java
@@ -105,80 +105,3 @@ public class MainActivity extends AppCompatActivity {
     }
 }
 
-
-
-// app/src/main/java/com/example/dcav2gui/MainActivity.java
-//import android.os.Bundle;
-//import android.view.Menu;
-//import android.view.MenuItem;
-//
-//import androidx.appcompat.app.AppCompatActivity;
-//import androidx.appcompat.widget.Toolbar;
-//import androidx.drawerlayout.widget.DrawerLayout;
-//import androidx.navigation.NavController;
-//import androidx.navigation.Navigation;
-//import androidx.navigation.ui.AppBarConfiguration;
-//import androidx.navigation.ui.NavigationUI;
-//
-//import com.example.dcav2gui.R;
-//import com.example.dcav2gui.databinding.ActivityMainBinding;
-//import com.google.android.material.navigation.NavigationView;
-//
-//public class MainActivity extends AppCompatActivity {
-//
-//    private AppBarConfiguration mAppBarConfiguration;
-//
-//    @Override
-//    protected void onCreate(Bundle savedInstanceState) {
-//        super.onCreate(savedInstanceState);
-//        setContentView(R.layout.activity_main);
-//
-//        Toolbar toolbar = findViewById(R.id.toolbar);
-//        setSupportActionBar(toolbar);
-//
-//        DrawerLayout drawer = findViewById(R.id.drawer_layout);
-//        //NavigationView navigationView = binding.navView;
-//        NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment_content_main);
-//        mAppBarConfiguration = new AppBarConfiguration.Builder(
-//                R.id.nav_home,
-//                R.id.nav_binance,
-//                R.id.nav_gateio,
-//                R.id.nav_kucoin,
-//                R.id.nav_okx)
-//                .setOpenableLayout(drawer)
-//                .build();
-//        NavigationUI.setupActionBarWithNavController(this, navController, mAppBarConfiguration);
-//        NavigationUI.setupWithNavController(navigationView, navController);
-//    }
-//
-//    @Override
-//    public boolean onCreateOptionsMenu(Menu menu) {
-//        // Inflate the menu; this adds items to the action bar if it is present.
-//        getMenuInflater().inflate(R.menu.main, menu);
-//        return true;
-//    }
-//
-//    @Override
-//    public boolean onOptionsItemSelected(MenuItem item) {
-//        // Handle action bar item clicks here. The action bar will
-//        // automatically handle clicks on the Home/Up button, so long
-//        // as you specify a parent activity in AndroidManifest.xml.
-//        int id = item.getItemId();
-//
-//        if (id == R.id.action_settings) {
-//            // Navigate to the SettingsFragment
-//            NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment_content_main);
-//            navController.navigate(R.id.nav_settings);
-//            return true;
-//        }
-//
-//        return super.onOptionsItemSelected(item);
-//    }
-//
-//    @Override
-//    public boolean onSupportNavigateUp() {
-//        NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment_content_main);
-//        return NavigationUI.navigateUp(navController, mAppBarConfiguration)
-//                || super.onSupportNavigateUp();
-//    }
-//}