Swing II - Java - page 1020

public void windowDeiconified(WindowEvent e)
{}

public void windowActivated(WindowEvent e)
{}

public void windowDeactivated(WindowEvent e)
{}
}

5. JButton magicButton = new JButton("Magic Button" );
ImageIcon wizardIcon = new ImageIcon("wizard.gif");
magicButton.setIcon(wizardIcon);

There are a number of other ways to accomplish the same thing. Below are two
of a number of valid alternatives:

JButton magicButton = new JButton("Magic Button");
magicButton.setIcon( new ImageIcon("wizard.gif"));

ImageIcon wizardIcon = new ImageIcon("wizard.gif");
JButton magicButton =
new JButton("Magic Button", wizardIcon);

6. ImageIcon wizardIcon = new ImageIcon( " wizard.gif");
JLabel wizardPicture = new JLabel(wizardIcon);
picturePanel.add(wizardPicture);

There are a number of other ways to accomplish the same thing. Below is one
valid alternative:

picturePanel.add( new JLabel(
new ImageIcon("wizard.gif")));

7. ImageIcon wizardIcon = new ImageIcon("wizard.gif");
JButton magicButton = new JButton(wizardIcon);
magicButton.setActionCommand("Kazam");

There are a number of other ways to accomplish the same thing. Below is one
valid alternative:

JButton magicButton =
new JButton( new ImageIcon("wizard.gif"));
magicButton.setActionCommand("Kazam");

8. No. You can invoke none, one, or both methods.

9. No. The class JTextArea is a descendent class of the class Component . So, every

JTextArea is also a Component .