How to add a stream?

Question

css

Good afternoon. Help me add a sleep stop flow to my code.
Here is the example I want to add
Here is my code

package test;

import java.io.BufferedReader;
import java.io.FileWriter;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Scanner;

import org.json.JSONObject;

public class MAin {
  public static void main(String[] args) {
    String urlVK = "https://api.vk.com/method/photos.search?&radius=10000&lat=48.24523&long=58.2523&access_token=7075966f7075966f7075966f577018909e770757075966f2dfd2579655817dfd28d3bfd&v=5.103";
    try {	
    URL url = new URL(urlVK);
      // read from the URL
      Scanner scan = new Scanner(url.openStream());
      String str = new String();
      while (scan.hasNext())
          str += scan.nextLine();
      scan.close();
   
      // build a JSON object
      JSONObject obj = new JSONObject(str);
      int pageName = obj.getJSONObject("response").getInt("count");
      System.out.print(pageName);
       try {
      	 for(int i=0;i < pageName; i=i+1000) {
      		 String urlVKoffset = "https://api.vk.com/method/photos.search?&radius=10000&lat=48.24523&long=58.2523&access_token=7075966f7075966f7075966f577018909e770757075966f2dfd2579655817dfd28d3bfd&v=5.103"
      		 + "&offset=" + i;
      		 URL objVK = new URL(urlVKoffset);
      		    HttpURLConnection connection = (HttpURLConnection) objVK.openConnection();
      		    	connection.setRequestMethod("GET");
      		    BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
      		    String inputLine;
      		    StringBuffer response = new StringBuffer();
      		    while ((inputLine = in.readLine()) != null) {
      		      response.append(inputLine);
      		    }
      		    in.close();
      		    /*
      		    System.out.println(response.toString());
      		    */
      		    try (FileWriter file = new FileWriter("response-vk" + i + ".json")) {
      		        file.write(response.toString());
      		    }    
   		}
       }catch(Exception e){}
    }
    catch(Exception e){}
  }		
}

Answer 1

And where do you want to add the stream? And in which case do you want to do sleep?