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}
//http url 을 불러오기 위한 객체 생성
GetDataJSON g = new GetDataJSON();
g.execute(url);
}
}

자) DB4.java
package layout;

// 불러올 클래스들을 import 해준다
import android.content.Context;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;

import com.helloworld.smartschool.R;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;

//DB4 클래스
public class DB4 extends Fragment {

//Context 생성
Context ct;

//DB 변수 생성
String myJSON;

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