Android实现读写JSON数据的方法

package de.vogella.android.twitter.json;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONObject;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
public class ParseJSON extends Activity {
 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);
  String readTwitterFeed = readTwitterFeed();
  try {
   JSONArray jsOnArray= new JSONArray(readTwitterFeed);
   Log.i(ParseJSON.class.getName(),
     "Number of entries " + jsonArray.length());
   for (int i = 0; i 

public void writeJSON() {
 JSONObject object = new JSONObject();
 try {
  object.put("name", "Jack Hack");
  object.put("score", new Integer(200));
  object.put("current", new Double(152.32));
  object.put("nickname", "Hacker");
 } catch (JSONException e) {
  e.printStackTrace();
 }
 System.out.println(object);
}