why show me this message when run this code :Application failure please try again

import android.app.ListActivity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
 
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.BasicHttpParams;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
 
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
 
 
public class First_Activity extends ListActivity {
 
    String myJSON;
 
    private static final String TAG_RESULTS="result";
    private static final String TAG_ID = "Sec_Cust_ID";
    private static final String TAG_NAME = "Sec_Cust_Name";
    private static final String TAG_ADD ="Sec_Account_State";
 
    JSONArray accounts = null;
 
    ArrayList<hashmap><string,>> accountlist;
 
    ListView list;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_first_);
        list = (ListView) findViewById(R.id.baccountlist);
        accountlist = new ArrayList<hashmap><string,string>>();
        getData();
    }
 
 
    protected void showList(){
        try {
            JSONObject jsonObj = new JSONObject(myJSON);
            accounts = jsonObj.getJSONArray(TAG_RESULTS);
 
            for(int i=0;i<accounts.length();i++){>
                JSONObject c = accounts.getJSONObject(i);
                String Sec_Cust_ID = c.getString(TAG_ID);
                String Sec_Cust_Name = c.getString(TAG_NAME);
                String Sec_Account_State = c.getString(TAG_ADD);
 
                HashMap<string,string> persons = new HashMap<string,string>();
 
                persons.put(TAG_ID,Sec_Cust_ID);
                persons.put(TAG_NAME,Sec_Cust_Name);
                persons.put(TAG_ADD,Sec_Account_State);
 
                accountlist.add(persons);
            }
 
            ListAdapter adapter = new SimpleAdapter(
                    First_Activity.this, accountlist, R.layout.list_item,
                    new String[]{TAG_ID,TAG_NAME,TAG_ADD},
                    new int[]{R.id.ac_id, R.id.ac_name, R.id.ac_state}
            );
 
            list.setAdapter(adapter);
 
        } catch (JSONException e) {
            e.printStackTrace();
        }
 
    }
 
    public void getData(){
        class GetDataJSON extends AsyncTask<string,>{
 
            @Override
            protected String doInBackground(String... params) {
                DefaultHttpClient httpclient = new DefaultHttpClient(new BasicHttpParams());
                HttpPost httppost = new HttpPost("http://10.0.2.2:80/AEST_SYSTEM/get-data.php");
 
                // Depends on your web service
                httppost.setHeader("Content-type", "application/json");
 
                InputStream inputStream = null;
                String result = null;
                try {
                    HttpResponse response = httpclient.execute(httppost);
                    HttpEntity entity = response.getEntity();
 
                    inputStream = entity.getContent();
                    // json is UTF-8 by default
                    BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"), 8);
                    StringBuilder sb = new StringBuilder();
 
                    String line = null;
                    while ((line = reader.readLine()) != null)
                    {
                        sb.append(line + "\n");
                    }
                    result = sb.toString();
                } catch (Exception e) {
                    // Oops
                }
                finally {
                    try{if(inputStream != null)inputStream.close();}catch(Exception squish){}
                }
                return result;
            }
 
            @Override
            protected void onPostExecute(String result){
                myJSON=result;
                showList();
            }
        }
        GetDataJSON g = new GetDataJSON();
        g.execute();
    }
 
   
 }