codedeman

class Location{
    
    var name:String = ""
    var address:String = ""
    
    init(name:String,address:String) {
        
        self.name = name
        self.address = address
    }

codedeman

import java.util.Scanner;

public class ChainTest {
	
	int count = 0;
	
	public static final char SPACE = ' ';
    public static final char TAB = '\t';
    public static final char BREAK_LINE = '\n';

codedeman

import java.util.Scanner;

public class ChainTest {
	
	int count = 0;
	
	public static final char SPACE = ' ';
    public static final char TAB = '\t';
    public static final char BREAK_LINE = '\n';

codedeman

  @IBAction func updateButton(_ sender: Any) {
        
        loadImage(urlString1: urlString1, urlString2: urlString2)
        
        dispatchGroup.notify(queue: .main) {
            self.displayUser()
        }


    }

codedeman

@IBAction func updateButton(_ sender: Any) {
        
        
        
        loadImage(urlString1: urlString1, urlString2: urlString2)
        
        dispatchGroup.notify(queue: .main) {
            self.displayUser()
        }

codedeman

 func displayUser()  {
        print("reloading  data")
        
 }

codedeman

func loadImage(urlString1:String,urlString2:String)  {
        
        DispatchQueue.global().async {
            let url1 =  URL(string: urlString1)
            
            let url2 = URL(string: urlString2)
            guard let data1 = try? Data(contentsOf: url1!) else {return}
            guard let data2 = try? Data(contentsOf: url2!) else {return}
            self.dispatchGroup.enter()
            

codedeman

func run(completion:@escaping()->Void) {
            
     DispatchQueue.main.async {
            completion()

      }
}