Something

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

public class FoodMachine extends JFrame
                  implements ActionListener
{
	Icon ginger_icon	= new ImageIcon("ginger.gif");
	Icon toffee_icon	= new ImageIcon("toffee.gif");
	Icon jumbo_icon		= new ImageIcon("jumbo.gif");
	Icon cashew_icon	= new ImageIcon("cashew.gif");
	Icon omega_icon		= new ImageIcon("omega.gif");
	Icon candy_icon		= new ImageIcon("candy.gif");
	Icon onep_icon  	= new ImageIcon("onep.gif");
    Icon twop_icon  	= new ImageIcon("twop.gif");
    Icon fivep_icon  	= new ImageIcon("fivep.gif");
    Icon tenp_icon  	= new ImageIcon("tenp.gif");
    Icon twentyp_icon  	= new ImageIcon("twentyp.gif");
    Icon fiftyp_icon  	= new ImageIcon("fiftyp.gif");
	Icon pound_icon		= new ImageIcon("pound.gif");
	Icon empty_icon 	= new ImageIcon("empty.gif");

	JPanel moneyPanel	= new JPanel();
	JButton ginger		= new JButton(ginger_icon);
	JButton toffee		= new JButton(toffee_icon);
	JButton jumbo		= new JButton(jumbo_icon);
	JButton cashew		= new JButton(cashew_icon);
	JButton omega		= new JButton(omega_icon);
	JButton candy		= new JButton(candy_icon);
	JButton onep  		= new JButton(onep_icon);
    JButton twop  		= new JButton(twop_icon);
    JButton fivep  		= new JButton(fivep_icon);
    JButton tenp  		= new JButton(tenp_icon);
    JButton twentyp  	= new JButton(twentyp_icon);
    JButton fiftyp  	= new JButton(fiftyp_icon);
	JButton pound		= new JButton(pound_icon);
	JPanel  aPanel		= new JPanel();
    JButton amount		= new JButton("0.00");
    JButton refund		= new JButton("Return");
	JButton reset		= new JButton("Reset");

	int ginger_cnt	= 10;
	int toffee_cnt	= 10;
	int jumbo_cnt	= 10;
	int cashew_cnt	= 10;
	int omega_cnt	= 10;
	int candy_cnt	= 10;
	int		cash	= 0;
   
   public FoodMachine() {
        setTitle("Food Machine");

		getContentPane().setLayout(new GridLayout(2, 2, 2, 2));
        moneyPanel.setLayout(new GridLayout(3, 2, 2, 2));
        moneyPanel.add(onep);
        moneyPanel.add(twop);
		moneyPanel.add(fivep);
		moneyPanel.add(tenp);
		moneyPanel.add(twentyp);
		moneyPanel.add(fiftyp);
		moneyPanel.add(pound);
		
		onep.setActionCommand("1");
        onep.addActionListener(this);
        twop.setActionCommand("2");
        twop.addActionListener(this);
        fivep.setActionCommand("5");
        fivep.addActionListener(this);
        tenp.setActionCommand("10");
        tenp.addActionListener(this);
        twentyp.setActionCommand("20");
        twentyp.addActionListener(this);
        fiftyp.setActionCommand("50");
        fiftyp.addActionListener(this);
		pound.setActionCommand("100");
		pound.addActionListener(this);

        amount.setForeground(Color.red);
        getContentPane().add(moneyPanel);
        aPanel.setLayout(new BorderLayout());
        aPanel.add(amount, BorderLayout.WEST);
		
		reset.setForeground(Color.green);
		reset.setActionCommand("reset");
		reset.addActionListener(this);
		aPanel.add(reset, BorderLayout.CENTER);

        refund.setForeground(Color.blue);
        refund.setActionCommand("refund");
        refund.addActionListener(this);
        aPanel.add(refund, BorderLayout.EAST);

        getContentPane().add(aPanel);
		ginger.setActionCommand("ginger");
		ginger.addActionListener(this);
		toffee.setActionCommand("toffee");
		toffee.addActionListener(this);
		jumbo.setActionCommand("jumbo");
		jumbo.addActionListener(this);
		cashew.setActionCommand("cashew");
		cashew.addActionListener(this);
		omega.setActionCommand("omega");
		omega.addActionListener(this);
		candy.setActionCommand("candy");
		candy.addActionListener(this);
		getContentPane().add(ginger);
		getContentPane().add(toffee);
		getContentPane().add(jumbo);
		getContentPane().add(cashew);
		getContentPane().add(omega);
		getContentPane().add(candy);
		pack ();


		this.addWindowListener
        (
            new WindowAdapter() {
                public void windowClosing(WindowEvent e) {
                    FoodMachine.this.windowClosed();
                }
            }
        );  
    }
	
	 public void actionPerformed(java.awt.event.ActionEvent e) 
	
		{
		 GingerFrame gin;
		 ChangeFrame chg;
		
		String  cmd= e.getActionCommand();
    	if(cmd.equals("1")) {
    		cash += 1;
    	}
    	else if(cmd.equals("2")) {
    		cash += 2;
    	}
    	else if(cmd.equals("5")) {
    		cash += 5;	
    	}
    	else if(cmd.equals("10")) {
    		cash += 10;	
    	}
    	else if(cmd.equals("20")) {
    		cash += 20;	
    	}
    	else if(cmd.equals("50")) {
    		cash += 50;
    	}	
		else if(cmd.equals("100")) {
			cash += 100;
		}
		else if(cmd.equals("ginger")) {
        	System.out.println("ginger pressed");
			gin = new GingerFrame(1);
        	cash -= 50;
        	if(ginger_cnt == 0) {
        		ginger.setIcon(empty_icon);	
        	}
    	} 
		else if(cmd.equals("toffee")) {
			System.out.println("toffee pressed");
			gin = new GingerFrame(2);
			cash -= 70;
			if(toffee_cnt == 0) {
				toffee.setIcon(empty_icon);
			}
		}
		else if(cmd.equals("jumbo")) {
			System.out.println("jumbo pressed");
			gin = new GingerFrame(3);
			cash -= 100;
			if(jumbo_cnt == 0) {
				jumbo.setIcon(empty_icon);
			}
		}
		else if(cmd.equals("cashew")) {
			System.out.println("cashew pressed");
			gin = new GingerFrame(4);
			cash -= 120;
			if(cashew_cnt == 0) {
				cashew.setIcon(empty_icon);
			}
		}
		else if(cmd.equals("omega")) {
			System.out.println("omega pressed");
			gin = new GingerFrame(5);
			cash -= 150;
			if(omega_cnt == 0) {
				omega.setIcon(empty_icon);
			}
		}
		else if (cmd.equals("candy")) {
			System.out.println("candy pressed");
			gin = new GingerFrame(6);
			cash -= 100;
			if(candy_cnt== 0) {
				candy.setIcon(empty_icon);
			}
		}
		else if(cmd.equals("refund")) { 
        	System.out.println("refund pressed");
        	if(cash > 0) {
        		chg  = new ChangeFrame(cash);
        		cash = 0;
        	}
    	}
		else if (cmd.equals("reset")) {
			System.out.println("reset pressed");
			if(cash < 0) {
				cash= 0;
			}
		}
		
		int pds, pns;
    	pds = cash / 100;
    	pns = cash % 100;
    	String spns = new Integer(pns).toString();
    	if(spns.length() == 1) spns = "0" + spns;
    	amount.setText(new Integer(pds).toString() + "." + spns);	
	}
	

	 protected void windowClosed() {
    	System.exit(0);
    }

	public static void main(String[] args) {
    	
        FoodMachine frame = new FoodMachine();
        
        frame.show();

    }

}