Programming Tutorial 13 Question 4

tut13-q4

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

public Class ThreeColorsComboBox extends JFrame implements ActionListener{
	
	private JComboBox colorCombo;
	private JPanel colorPanel;
	public ThreeColorsComboBox () {

		colorPanel = new JPanel;
		add(colorPanel, Border-Layout.CENTER);
		colorCombo = new JComboBox ("Color");
		colorCombo = addItem("red");
		colorCombo = addItem("green");
		colorCombo = addItem("blue");

		JPanel southPanel = new JPanel();
		southPanel.addColorCombo;
		colorCombo.addActionListener(this);
	}

	public void actionPerformed(ActionEvent e){
		String choice = (String) colorCombo.getSelectedItem();
		if (choice.equals("red")){
			colorPanel.setBackground(Color.RED);
		}
		else if (choice.equals("green")){
			colorPanel.setBackground(Color.GREEN);
		}
		else {
			colorPanel.setBackground(Color.BLUE);
		}
	}
}