The document contains a Java code implementation of a drawing application using Swing. It includes features for selecting different drawable figures, changing interior and border colors, and a graphical user interface with menus and toolbars. The main class handles the application's operations, including the initialization of the GUI and interaction mechanisms.

1. import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JColorChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JToolBar;
public class DrawApp extends JFrame {
//declaring data fields
private Drawable selectedFig = null;
//default border color
private Color presentBorderColor = Color.BLACK;
private Color presentInteriorrColor = Color.WHITE;
private Drawable[] theFigKinds;
// Constructor
private DrawApp(String args[]) {
//title
super("Draw App");
//frame size
setSize(650, 650);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
loadFigKinds(args);
JMenu drawingToolMenu = createDrawingToolMenu();
JToolBar drawingToolToolBar = createDrawingToolToolBar();
selectedFig = theFigKinds[0];
JMenu colorMenu = createColorMenu();
JMenuBar menuBar = new JMenuBar();
menuBar.add(colorMenu);
menuBar.add(drawingToolMenu);
setJMenuBar(menuBar);

2. getContentPane().add(drawingToolToolBar, BorderLayout.EAST);
getContentPane().add(new DrawPanel(this),
BorderLayout.CENTER);
}
// creating drawing tool menu
private JMenu createDrawingToolMenu() {
JMenu drawingToolMenu = new JMenu("Drawing Tool");
for (int i = 0; i < theFigKinds.length; i++) {
// create a menu item for this figure kind
JMenuItem item = new JMenuItem(theFigKinds[i].getName());
// set the action listener
item.addActionListener(new ToolSelector(theFigKinds[i]));
// add the item to the menu
drawingToolMenu.add(item);
}
return drawingToolMenu;
}
// creating menu tool bar
JToolBar createDrawingToolToolBar() {
JToolBar drawingToolToolBar = new JToolBar(JToolBar.VERTICAL);
for (int i = 0; i < theFigKinds.length; i++) {
JButton aButton = new JButton(theFigKinds[i].getIcon(16));
aButton.addActionListener(new ToolSelector(theFigKinds[i]));
drawingToolToolBar.add(aButton);
}
return drawingToolToolBar;
}
//creating color menu
private JMenu createColorMenu() {
JMenu colorMenu = new JMenu("Colors");
JMenuItem setInteriorColor
= new JMenuItem("Set Interior Color");
setInteriorColor.addActionListener(new SetInteriorColor());
colorMenu.add(setInteriorColor);
JMenuItem setBorderColor = new JMenuItem("Set Border Color");
setBorderColor.addActionListener(new SetBorderColor());

3. colorMenu.add(setBorderColor);
return colorMenu;
}
public Drawable getSelectedFig() {
return selectedFig;
}
public static void main(String args[]) {
DrawApp drawApp = new DrawApp(args);
drawApp.setVisible(true);
}
// Inner Classes
private class ToolSelector implements ActionListener {
// Data Fields
private Drawable desiredFig;
// Constructor
public ToolSelector(Drawable desiredFig) {
this.desiredFig = desiredFig;
}
// Methods
@Override
public void actionPerformed(ActionEvent e) {
selectedFig = desiredFig;
}
}
private class SetInteriorColor implements ActionListener {
@Override
public void actionPerformed(ActionEvent e) {
presentInteriorrColor
= JColorChooser.showDialog(
DrawApp.this,
"Select Interior Color",
presentInteriorrColor);
for (int i = 0; i < theFigKinds.length; i++) {
theFigKinds[i].setInteriorColor(presentInteriorrColor);
}
repaint();

4. }
}
}
Solution
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JColorChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JToolBar;
public class DrawApp extends JFrame {
//declaring data fields
private Drawable selectedFig = null;
//default border color
private Color presentBorderColor = Color.BLACK;
private Color presentInteriorrColor = Color.WHITE;
private Drawable[] theFigKinds;
// Constructor
private DrawApp(String args[]) {
//title
super("Draw App");
//frame size
setSize(650, 650);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
loadFigKinds(args);
JMenu drawingToolMenu = createDrawingToolMenu();
JToolBar drawingToolToolBar = createDrawingToolToolBar();
selectedFig = theFigKinds[0];

5. JMenu colorMenu = createColorMenu();
JMenuBar menuBar = new JMenuBar();
menuBar.add(colorMenu);
menuBar.add(drawingToolMenu);
setJMenuBar(menuBar);
getContentPane().add(drawingToolToolBar, BorderLayout.EAST);
getContentPane().add(new DrawPanel(this),
BorderLayout.CENTER);
}
// creating drawing tool menu
private JMenu createDrawingToolMenu() {
JMenu drawingToolMenu = new JMenu("Drawing Tool");
for (int i = 0; i < theFigKinds.length; i++) {
// create a menu item for this figure kind
JMenuItem item = new JMenuItem(theFigKinds[i].getName());
// set the action listener
item.addActionListener(new ToolSelector(theFigKinds[i]));
// add the item to the menu
drawingToolMenu.add(item);
}
return drawingToolMenu;
}
// creating menu tool bar
JToolBar createDrawingToolToolBar() {
JToolBar drawingToolToolBar = new JToolBar(JToolBar.VERTICAL);
for (int i = 0; i < theFigKinds.length; i++) {
JButton aButton = new JButton(theFigKinds[i].getIcon(16));
aButton.addActionListener(new ToolSelector(theFigKinds[i]));
drawingToolToolBar.add(aButton);
}
return drawingToolToolBar;
}
//creating color menu
private JMenu createColorMenu() {
JMenu colorMenu = new JMenu("Colors");
JMenuItem setInteriorColor

6. = new JMenuItem("Set Interior Color");
setInteriorColor.addActionListener(new SetInteriorColor());
colorMenu.add(setInteriorColor);
JMenuItem setBorderColor = new JMenuItem("Set Border Color");
setBorderColor.addActionListener(new SetBorderColor());
colorMenu.add(setBorderColor);
return colorMenu;
}
public Drawable getSelectedFig() {
return selectedFig;
}
public static void main(String args[]) {
DrawApp drawApp = new DrawApp(args);
drawApp.setVisible(true);
}
// Inner Classes
private class ToolSelector implements ActionListener {
// Data Fields
private Drawable desiredFig;
// Constructor
public ToolSelector(Drawable desiredFig) {
this.desiredFig = desiredFig;
}
// Methods
@Override
public void actionPerformed(ActionEvent e) {
selectedFig = desiredFig;
}
}
private class SetInteriorColor implements ActionListener {
@Override
public void actionPerformed(ActionEvent e) {
presentInteriorrColor
= JColorChooser.showDialog(
DrawApp.this,
"Select Interior Color",

7. presentInteriorrColor);
for (int i = 0; i < theFigKinds.length; i++) {
theFigKinds[i].setInteriorColor(presentInteriorrColor);
}
repaint();
}
}
}