public class Folk {
	String name;
	String career;
	String age;
	int salary;
	boolean sex;

public class MyJsonWriter {
	ArrayList<Folk> folks;
	File saveFile;
	public MyJsonWriter(ArrayList<Folk> folks){
		this.folks=folks;
	}
	
	public void setFilePath(String filepath){
		saveFile=new File(filepath);
		try {
			saveFile.createNewFile();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	
	public String getJsonData(){
		String jsonData = null;
//		String jsonData=new JSONStringer().object().key("village").value("abc").endObject().toString();
		try {
			StringBuilder builder=new StringBuilder();
			ArrayList<String> folksData=new ArrayList<String>();
			JSONArray array=new JSONArray();
			for(int i=0;i<folks.size();i++){
				Folk folk=folks.get(i);
				JSONObject jsonObject=new JSONObject();
				jsonObject.put("name", folk.getName());
				jsonObject.put("sex", folk.isSex()?"male":"female");
				jsonObject.put("age", folk.getAge());
				jsonObject.put("career", folk.getCareer());
				jsonObject.put("salary", folk.getSalary());
				folksData.add(jsonObject.toString());
				array.put(jsonObject);
			}
//			JSONArray jsonArray=new JSONArray(folksData);
			int len =	array.length();
			jsonData=new JSONStringer().object().key("vallage").value(array).endObject().toString();
			System.out.println(jsonData);
			writeData(jsonData);
		} catch (JSONException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return jsonData;
	}

	private void writeData(String jsonData) {
		// TODO Auto-generated method stub
		try {
			BufferedReader reader=new BufferedReader(new StringReader(jsonData));
			BufferedWriter writer=new BufferedWriter(new FileWriter(saveFile));
			int len=0;
			char[] buffer=new char[1024]; 
			while((len=reader.read(buffer))!=-1){
				writer.write(buffer, 0, len);
			}
			writer.flush();
			writer.close();
			reader.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

public class MyJsonReader {
	String jsonData;
//	ArrayList<Folk> folks;
	public MyJsonReader(String jsonData){
		this.jsonData=jsonData;
	}
	
	public ArrayList<Folk> getJsonData(){
		ArrayList<Folk> folks=new ArrayList<Folk>();
		try {
			JSONObject jsonObject=new JSONObject(jsonData);
			JSONArray jsonArray=jsonObject.getJSONArray("vallage");
			int len = jsonArray.length();
			for(int i=0;i<jsonArray.length();i++){
				JSONObject json=jsonArray.getJSONObject(i);
				Folk folk=new Folk();
				folk.setName(json.optString("name"));
				folk.setAge(json.optString("age"));
				folk.setCareer(json.optString("career"));
				folk.setSalary(json.optInt("salary"));
				folk.setSex(json.optString("sex").equals("male")?true:false);
				folks.add(folk);
			}
		} catch (JSONException e) {
			// TO