Java Reference
In-Depth Information
Prototype (Chapter 18)
SOLUTION 18.1
Figure B.23 shows a solution. Note that this class is concrete. You will soon establish
instances of this class as complete user interface factories.
Figure B.23. A
UIKit
object is a wellspring of GUI components that have a consistent
look.
SOLUTION 18.2
Here is an example solution:
public static UIKit handheld()
{
UIKit k = new UIKit();
Font f = new Font("Dialog", Font.PLAIN, 8);
k.button.setFont(f);
k.textArea.setFont(f);
Cursor c = new Cursor(Cursor.HAND_CURSOR);
k.textArea.setCursor(c);
return k;
}
The object
k
is a kit that can create components suitable for a handheld display.
SOLUTION 18.3
The comment for
Object.clone()
in JDK 1.2.2 says that this method "creates a new
instance of the class of this object and initializes all its fields with exactly the contents of the
corresponding fields of this object, as if by assignment; the contents of the fields are not
themselves cloned. Thus, this method performs a 'shallow copy' of this object, not a 'deep
