Thread: matching game random number problem

I am trying to make a matching game where the user selects two images and the program has to check if the images match. I am trying to put random images in buttons and I am getting this error:

M:\School\ICS4U1\Projects\Matching\MatchingGame.ja va:134: cannot find symbol
symbol : method generateNewRandom()
location: class MatchingGame
gameButton[i].setIcon(images[generateNewRandom()]);
^
M:\School\ICS4U1\Projects\Matching\MatchingGame.ja va:160: incompatible types
found : java.lang.Object
required: int
return numbersList.get(n);

This is my code:

/**
 *Matching Game
 *
 *
 * 
 * 2013/2/25
 */
 
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.*;
import javax.swing.*;
import static java.util.Collections.*;
import javax.swing.ImageIcon.*;
 
public class MatchingGame extends JFrame implements ActionListener {
	private JButton exitButton, replayButton;
    private JButton[] gameButton = new JButton[36];
    private ImageIcon[] ImageArray;
 
    public MatchingGame() {
    	setLayout(new BorderLayout());
    	init();
        panel();
        setImages();
        setTitle("MathingGame");
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setSize(900, 900);
        setVisible(true);
    }
 
    public void init() {
        for (int i = 0; i < gameButton.length; i++) {
            gameButton[i] = new JButton();
            gameButton[i].addActionListener(this);
        }
        exitButton = new JButton("Exit");
        exitButton.addActionListener(this);
        replayButton = new JButton("Replay");
        replayButton.addActionListener(this);
    }
 
    public void panel() {
 
    	Panel gamePanel = new Panel();
    	gamePanel.setLayout(new GridLayout(6, 6));
 
    	for (int i = 0; i < gameButton.length; i++) {
        	gamePanel.add(gameButton[i]);
    	}
 
    	Panel buttonPanel = new Panel();
    	buttonPanel.add(replayButton);
    	buttonPanel.add(exitButton);
    	buttonPanel.setLayout(new GridLayout(1, 0));
 
    	add(gamePanel, BorderLayout.CENTER);
    	add(buttonPanel, BorderLayout.SOUTH);
 
    }
 
    public void setImages(){
 
    ImageIcon Aquaman = new ImageIcon ("Aquaman.jpg");
    ImageIcon Batman = new ImageIcon ("Batman.jpg");
    ImageIcon CaptainAmerica = new ImageIcon ("CaptainAmerica.jpg");
    ImageIcon Deadpool = new ImageIcon ("Deadpool.jpg");
    ImageIcon FantasticFour = new ImageIcon ("FantasticFour.jpg");
    ImageIcon Flash = new ImageIcon ("Flash.jpg");
    ImageIcon GreenArrow = new ImageIcon ("GreenArrow.jpg");
    ImageIcon GreenLantern = new ImageIcon ("GreenLantern.jpg");
    ImageIcon Hawkeye = new ImageIcon ("Hawkeye.jpg");
    ImageIcon Ironman = new ImageIcon ("Ironman.jpg");
    ImageIcon Punisher = new ImageIcon ("Punisher.jpg");
    ImageIcon RedTornado = new ImageIcon ("RedTornado.jpg");
    ImageIcon Robin = new ImageIcon ("Robin.jpg");
    ImageIcon Spiderman = new ImageIcon ("Spiderman.jpg");
    ImageIcon Superman = new ImageIcon ("Superman.jpg");
    ImageIcon TheAvengers = new ImageIcon ("TheAvengers.jpg");
    ImageIcon Thor = new ImageIcon ("Thor.jpg");
    ImageIcon Wonderwoman = new ImageIcon ("Wonderwoman.jpg");
 
    ImageIcon[] images = new ImageIcon[36];
 
    images[0] = Aquaman;
    images[1] = Batman;
    images[2] = CaptainAmerica;
    images[3] = Deadpool;
    images[4] = FantasticFour;
    images[5] = Flash;
    images[6] = GreenArrow;
    images[7] = GreenLantern;
    images[8] = Hawkeye;
    images[9] = Ironman;
    images[10] = Punisher;
    images[11] = RedTornado;
    images[12] = Robin;
    images[13] = Spiderman;
    images[14] = Superman;
    images[15] = TheAvengers;
    images[16] = Thor;
    images[17] = Wonderwoman;
    images[18] = Aquaman;
    images[19] = Batman;
    images[20] = CaptainAmerica;
    images[21] = Deadpool;
    images[22] = FantasticFour;
    images[23] = Flash;
    images[24] = GreenArrow;
    images[25] = GreenLantern;
    images[26] = Hawkeye;
    images[27] = Ironman;
    images[28] = Punisher;
    images[29] = RedTornado;
    images[30] = Robin;
    images[31] = Spiderman;
    images[32] = Superman;
    images[33] = TheAvengers;
    images[34] = Thor;
    images[35] = Wonderwoman;
 
    for(int i=0; i<36;i++){
    	gameButton[i].setIcon(images[generateNewRandom()]);
 
    }
	}
 
    public class RandomNumberGenerator {
    ArrayList numbersList = new ArrayList ();
    public RandomNumberGenerator(int length) {
        for(int i=0;i<=36;i++)
            numbersList.add(i);
        Collections.shuffle(numbersList);
    }
    public int generateNewRandom(int n) {
        return numbersList.get(n);
    }
	}
 
    public void actionPerformed(ActionEvent e) {
		if (exitButton == e.getSource()) {
		    System.exit(0);
		}
		if (replayButton == e.getSource()) {
 
		}
    }
 
    public static void main (String[] args){
    	new MatchingGame();
    }
 
}