Location service initialization in android

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.company.product.package">

    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.INTERNET" />
    
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

MainActivity.java

public class MainActivity extends AppCompatActivity implements LocationListener{

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

 LocationManager lm = (LocationManager)
                getSystemService(Context.LOCATION_SERVICE);;

        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            Toast.makeText(MainActivity.this,"GPS Disabled, enable GPS and allow app to use the service.",Toast.LENGTH_LONG).show();
        }
        else {
            lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 1, this);  // Change GPS provider with other location provider like Network based locaiton
        }
        
      }  
        
      //_________________________________________________________________________________________________________________
        
        
       
        
        
        @Override
    public void onLocationChanged(Location location) {
        double Latitude=location.getLatitude();
        double Longitude=location.getLongitude();
        String currentLocation="Lat: "+Latitude+", Lng: "+Longitude;
        Log.d("Current Location",currentLocation);
        
    }

    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {

    }

    @Override
    public void onProviderEnabled(String provider) {

    }

    @Override
    public void onProviderDisabled(String provider) {

    }

}