connectivity code java file

package com.adigroup;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;

public class TestActivity extends Activity {
    InputStream is;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        String result = "";
        //the year data to send
        ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
        nameValuePairs.add(new BasicNameValuePair("name","tushar"));
        nameValuePairs.add(new BasicNameValuePair("password","123456"));
        //nameValuePairs.add(new BasicNameValuePair("username",""));





        //http post
        try{
                HttpClient httpclient = new DefaultHttpClient();
                HttpPost httppost = new HttpPost("http://localhost/connect1.php");
                httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
                HttpResponse response = httpclient.execute(httppost);
                HttpEntity entity = response.getEntity();
                is = entity.getContent();
                Log.e("log_tag", "connection success ");
                Toast.makeText(getApplicationContext(), "pass", Toast.LENGTH_SHORT).show();
        }catch(Exception e){
                Log.e("log_tag", "Error in http connection "+e.toString());
                Toast.makeText(getApplicationContext(), "fail", Toast.LENGTH_SHORT).show();

        }
        //convert response to string
        try{
                BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
                StringBuilder sb = new StringBuilder();
                String line = null;
                while ((line = reader.readLine()) != null) {
                        sb.append(line + "\n");
                        Toast.makeText(getApplicationContext(), "pass", Toast.LENGTH_SHORT).show();
                }
                is.close();

                result=sb.toString();
        }catch(Exception e)
        {
               Log.e("log_tag", "Error converting result "+e.toString());
               System.out.println("app in progress********************" + nameValuePairs.size());
            Toast.makeText(getApplicationContext(), "fail", Toast.LENGTH_SHORT).show();

        }

        //parse json data
        try{
                JSONArray jArray = new JSONArray(result);
                for(int i=0;i<jArray.length();i++){
                       JSONObject json_data = jArray.getJSONObject(i);
                        Log.e("log_tag","name: "+json_data.getInt("name")+
                                ", name: "+json_data.getString("name")+
                                ", sex: "+json_data.getInt("sex")+
                                ", birthyear: "+json_data.getInt("birthyear")
                        );
                        Toast.makeText(getApplicationContext(), "pass", Toast.LENGTH_SHORT).show();
               }

        }catch(JSONException e){
                Log.e("log_tag", "Error parsing data "+e.toString());
                Toast.makeText(getApplicationContext(), "fail", Toast.LENGTH_SHORT).show();
        }
    }
}