View difference between Paste ID: bWzkJAPd and acF4AKTW

 	import java.util.ArrayList;
 
 	public class StockMediator implements Mediator {
 
         private ArrayList<Colleague> colleagues;
         private ArrayList<Stock> stonks;
 
         public StockMediator() {
             colleagues = new ArrayList<>();
             stonks = new ArrayList<>();
         }
 
         public void addColleague(Colleague newColleague) {
             colleagues.add(newColleague);
         }
 
         public void addStock(Stock stock){
             stonks.add(stock);
         }
 
         public void stockChange() {
             for (Stock stock : stonks) {
                 if (stock.getFreshness()) {
                     for (Colleague coll : colleagues) {
                         coll.getNewPrice(stock.getStockPrice(), stock.getstockName());
                     }
                     stock.setOld();
                 }
             }
 
         }
     }
 
 
 	public interface Mediator {
 
         public void stockChange();
 
         public void addColleague(Colleague colleague);
 
     }
 
 
 
 	public abstract class Colleague {
 
         private Mediator mediator;
 
         public Colleague(Mediator newMediator) {
             mediator = newMediator;
             mediator.addColleague(this);
         }
 
         public void getNewPrice(int newPrice, String name) {
             System.out.println("New price for stock " + name + ": " + newPrice);
         }
     }
 
 
 
 
 	public class ŻakStox extends Colleague {
 
     	public ŻakStox(Mediator newMediator) {
         	super(newMediator);
 
         	System.out.println("ŻakStox signed up with the stockexchange\n");
 
    		}
 
 	}
 
 
 
 	public class Stock {
 
     	private String stockName = "";
     	private int stockPrice = 0;
     	private boolean ifNew = true;
 
 
     	public Stock(String stockName, int stockPrice) {
 
         	this.stockName = stockName;
         	this.stockPrice = stockPrice;
 
     	}
 
     	public String getstockName() {
         	return stockName;
     	}
 
     	public int getStockPrice() {
         return stockPrice;
     	}
 
     	public void setOld() {
         	this.ifNew = false;
     	}
 
     	public boolean getFreshness() { return ifNew; }
 
     	public void setNewPrice(int newPrice) {
         	ifNew = true;
         	stockPrice = newPrice;
     	}
 	}
 
 
 import java.util.ArrayList;
 
 public class Main {
 
     public static void main(String[] args) {
         StockMediator mediator = new StockMediator();
 
         ŻakStox żak = new ŻakStox(mediator);
         ŻakStox żak1 = new ŻakStox(mediator);
         Stock stock = new Stock("PWr", 666);
         Stock stock1 = new Stock("Zaliczcie mi mpis", 13);
         mediator.addStock(stock);
         mediator.addStock(stock1);
 
         mediator.stockChange();
 
         stock.setNewPrice(15);
         mediator.stockChange();
 
         stock.setNewPrice(737);
         stock1.setNewPrice(42);
         mediator.stockChange();
     }
 }