Nouman16

public class ConnectTask extends AsyncTask<String, Void, String> {

        
    @Override
    protected String doInBackground(String... params) {

        StringBuilder stringBuilder = new StringBuilder();
        
        
        // params stores url of the API in string format that is needed to be convert in URL it comes from your MainActivity from where you execute asynctask.

Nouman16

public class MainActivity extends AppCompatActivity {

    Button buttonStart;
    Button buttonStop;



    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);