PPT Slide

import java.awt.*;

import java.awt.event.*;

public class ControlPanel extends Panel implements MouseListener,

ItemListener {

private DrawCanvas canvas;

private Button clearButton;

private Label label;

private Choice colorChoice;

public ControlPanel() {

this.setLayout(new GridLayout(1, 3));

clearButton = new Button("Clear");

label = new Label("Select Pen Color:");

colorChoice = new Choice();

colorChoice.add("Red"); colorChoice.add("Blue");

colorChoice.add("Green");

colorChoice.addItemListener(this);

clearButton.addMouseListener(this);

add(clearButton); add(label); add(colorChoice);

} // constructor

public void setCanvas(DrawCanvas canvas) {

this.canvas = canvas;

} // setCanvas