PangPang - błąd przy wczytywaniu obiektów z tablicy!

Witam,

Mam problem, a mianowicie chcę wczytać zmienną obiektu, który znajduje się w tablicy "tablica". Sami zobaczcie poniżej między gwiazdkami a także na rodzaj błędu. Dodam także że zmienna "zmPomX" jest typu "public int".

Kod Java:

package pangpang;

import java.awt.Color;

public class PangPang
{
	static Configuration conf;
//	private Ball ball;
//	private Ball ball2;
//	private Ball ball3;
	public Ball tablica [];
	private Background bg;
	
	PangPang() 
	{
		conf = new Configuration();
		setLevel();
	}
	
	public void startGame()
	{
		
		Paint.backgroundGraphics.setColor(Color.white);
		Paint.backgroundGraphics.fillRect(0, 0, PangPang.conf.getWidthWindow(), PangPang.conf.getHighthWindow());;
		bg.gameBackground();
//		ball.move();
//		ball2.move();
//		ball3.move();
		Ball z = tablica[0];

//*****************************************************************
		System.out.println(z.zmPomX); //przy tablica[0].zmPomX też wywala błąd
//*****************************************************************		

	}
	
	public void setLevel()
	{
		bg = new Background();
//		ball = new Ball();
//		ball2= new Ball();
//		ball3= new Ball();
		
		tablica = new Ball[3];
		for(Ball x:tablica)
		{
			x = new Ball();
		}
	}
}

Błędy w Konsoli:

Konstruktor Ball wywołano razy: 0
zmPomX: 219
Konstruktor Ball wywołano razy: 1
zmPomX: 52
Konstruktor Ball wywołano razy: 2
zmPomX: 35
Exception in thread "AWT-EventQueue-1" java.lang.NullPointerException
	at pangpang.PangPang.startGame(PangPang.java:32)
	at pangpang.Paint.paint(Paint.java:91)
	at sun.awt.RepaintArea.paintComponent(Unknown Source)
	at sun.awt.RepaintArea.paint(Unknown Source)
	at sun.awt.windows.WComponentPeer.handleEvent(Unknown Source)
	at java.awt.Component.dispatchEventImpl(Unknown Source)
	at java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.awt.Component.dispatchEvent(Unknown Source)
	at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.awt.EventQueue.access$200(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
	at java.awt.EventQueue$4.run(Unknown Source)
	at java.awt.EventQueue$4.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)

        tablica = new Ball[3];
        for(Ball x:tablica)
        {
            x = new Ball();
        }

To tak nie działa. Taka operacja NIE wpisuje tego nowego obiektu do tablicy.