Google Places Api is giving me request denied always

j.setUrl("https://maps.googleapis.com/maps/api/place/nearbysearch/json?location=-33.8670522,151.1957362&radius=500&types=food&name=harbour&sensor=false&key=AIzaSyA712jyN6NY0VXSGf8zgXfXSRhq01O8RLY");

This is my json url with my key. It always gives me status request denied . I have tried making alot of keys with debug keystore and new keystores but nothing works . it is the example url of google. It doesn't work for me. If you want to provide a solution regarding a new key please give me the detailed procedure on how to get a valid debug key. Please be very detailed. If you want to provide a solution regarding sensor paramater its there already. If you want json parser file its as below

    package com.json;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONException;
import org.json.JSONObject;

import android.os.AsyncTask;
public class JSONParser extends AsyncTask {

    static InputStream is = null;
    static JSONObject jObj = null;
    static String json = "";
    private String url;

    // constructor
    public JSONParser() {

    }

@Override
protected JSONObject doInBackground(Void... params) {
    // defaultHttpClient
    DefaultHttpClient httpClient = new DefaultHttpClient();
    HttpPost httpPost = new HttpPost(getUrl());

    HttpResponse httpResponse = null;
    try {
        httpResponse = httpClient.execute(httpPost);
    } catch (ClientProtocolException e2) {
        // TODO Auto-generated catch block
        e2.printStackTrace();
    } catch (IOException e2) {
        // TODO Auto-generated catch block
        e2.printStackTrace();
    }
    HttpEntity httpEntity = httpResponse.getEntity();
    try {
        is = httpEntity.getContent();
    } catch (IllegalStateException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    BufferedReader reader = null;
    try {
        reader = new BufferedReader(
                new InputStreamReader(is, "iso-8859-1"), 8);
    } catch (UnsupportedEncodingException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    StringBuilder sb = new StringBuilder();
    String line = null;
    try {
        while ((line = reader.readLine()) != null) {
            sb.append(line + "\n");
        }
    } catch (IOException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    }
    try {
        is.close();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    json = sb.toString();

    try {
        jObj = new JSONObject(json);
    } catch (JSONException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    // return JSON String
    return jObj;
}

public String getUrl() {
    return url;
}

public void setUrl(String url) {
    this.url = url;
}

}

.

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