import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.Panel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.DecimalFormat;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextArea;

public class FlameBay extends JFrame{
	
	private JButton clearArea = new JButton("Clear");
	private JButton b1 = new JButton("Egg Noodles $1.00");
	private JButton b2 = new JButton("Spaghetti $0.95");
	private JButton b3 = new JButton("Ramen $0.50");
	private JButton b4 = new JButton("Beef $2.00");
	private JButton b5 = new JButton("Chicken $1.50");
	private JButton b6 = new JButton("Pork $1.25");
	private JButton b7 = new JButton("Kung Pao $0.50");
	private JButton b8 = new JButton("Teriyaki $0.25");
	private JButton b9 = new JButton("Curry $0.45");
	private JButton checkout = new JButton("Check Out");
	
	
	String defaultWidth = "\t\t              \r";
	JTextArea area = new JTextArea(25,20);
	
	public FlameBay()
	{
		FoodCallback callback = new FoodCallback(area);
		clearArea.addActionListener(callback);
		b1.addActionListener(callback);
		b2.addActionListener(callback);
		b3.addActionListener(callback);
		b4.addActionListener(callback);
		b5.addActionListener(callback);
		b6.addActionListener(callback);
		b7.addActionListener(callback);
		b8.addActionListener(callback);
		b9.addActionListener(callback);
		checkout.addActionListener(callback);
		
		
		JPanel panel = new JPanel();
		//Add buttons into the panel
		panel.add(b1);
		panel.add(b2);
		panel.add(b3);
		panel.add(b4);
		panel.add(b5);
		panel.add(b6);
		panel.add(b7);
		panel.add(b8);
		panel.add(b9);
		
		
				
		// Create grid layout , with column, row arguments
		GridLayout g = new GridLayout(3,3);
		// Set panel to the grid lay out
		panel.setLayout(g);
		
		// Panel is added to default border layout, default center location
		add(panel);
		add(clearArea, BorderLayout.NORTH);
		add(checkout, BorderLayout.SOUTH);
		add(area, BorderLayout.EAST);
		
		setTitle("FlameBay");
		setSize(650,410);
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		setVisible(true);
		
		
	}
	

	// Foodcallback is created, implementing necessary actionlistener interface
	private class FoodCallback implements ActionListener{
		
		// Text area created to receive object passed to FoodCallback
		private JTextArea area;
		private float total = 0;
		
		public FoodCallback(JTextArea area)
		{
			// Field initialized 
			this.area = area;
		}
		
		@Override
		public void actionPerformed(ActionEvent e) 
		{
			DecimalFormat twoDecimalPlace = new DecimalFormat("#0.00");

			//Button ID saved to variable
			JButton button = (JButton)e.getSource();
			//ID which button
			if(button == b1)
				total += 1.00;
			else if(button == b2)
				total += 0.95;
			else if(button == b3)
				total += 0.50;
			else if(button == b4)
				total += 2.00;
			else if(button == b5)
				total += 1.50;
			else if(button == b6)
				total += 1.25;
			else if(button == b7)
				total += 0.50;
			else if(button == b8)
				total += 0.25;
			else if(button == b9)
				total += 0.45;
			
			if(button == checkout)
				area.append("--- Cost: $" + twoDecimalPlace.format(total) + "\n");
			else if(button == clearArea)
			{
				area.setText(null);
				total = 0;
			}
			else
				area.append(button.getText()+"\n");
			
		}

	}

	public static void main(String[] args) 
	{
		new FlameBay();

	}

}