February 2014
Beginner
1248 pages
62h 25m
English
Content preview from Java™ How To Program (Early Objects), Tenth Edition
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5.11 (Optional) GUI and Graphics Case Study: Drawing Rectangles and Ovals
This section demonstrates drawing rectangles and ovals, using the Graphics methods drawRect and drawOval, respectively. These methods are demonstrated in Fig. 5.27.
1 // Fig. 5.27: Shapes.java 2 // Drawing a cascade of shapes based on the user’s choice. 3 import java.awt.Graphics; 4 import javax.swing.JPanel; 5
6 public class Shapes extends JPanel 7 { 8 private int choice; // user's choice of which shape to draw 9
10 // constructor sets the user's choice11 public Shapes(int userChoice)12 {13 choice = userChoice;14 }15
16 // draws a cascade of shapes starting from the top-left corner17 ...
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