How to implement AsyncTask in Android applications?

Please try it your self.

How to implement AsyncTask in Android applications?

package com.j4android;

import android.app.Activity;
import android.os.Bundle;

public class MainActicity extends Activity{
@Override
public void onCreate(Bundle bundle){
super.onCreate(bundle);
setContentView(R.layout.main);
                new CallAsynClass().execute();
        }

       private class CallAsynClass extends AsyncTask<URL, Integer, Long> {
          protected Long doInBackground(URL... urls) {
            //do something
          }
          protected void onProgressUpdate(Integer... progress) {
            //do something
          }
          protected void onPostExecute(Long result) {
            //do something
          }
          protected void onPreExecute(){
    //do something
          }
       }
}