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BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "iso-8859-1"), 10);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}

// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}

// return JSON String
return jObj;

}
}
*******************************MainActivity_tag***********************package
kr.icehs.intec.emart;

import android.app.ProgressDialog;
import android.graphics.drawable.ColorDrawable;
import android.nfc.tech.MifareClassic;
import android.os.AsyncTask;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.EditText;
import android.content.Intent;
import android.widget.Toast;

import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;

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