1 package SimpleFrame;
 2
 3 import java.awt.*;
 4 import javax.swing.*;
 5
 6 /**
 7  * @version 1.33 2015-05-12
 8  * @author Cay Horstmann
 9  */
10 public class SimpleFrameTest
11 {
12    public static void main(String[] args)
13    {
14       EventQueue.invokeLater(() ->
15          {
16             SimpleFrame frame = new SimpleFrame();
17             frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
18             frame.setVisible(true);
19          });
20    }
21 }
22
23 class SimpleFrame extends JFrame
24 {
25    private static final int DEFAULT_WIDTH = 300;
26    private static final int DEFAULT_HEIGHT = 200;
27
28    public SimpleFrame()
29    {
30       setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);
31    }
32 }

 1 package sizedFrame;
 2
 3 import java.awt.*;
 4 import javax.swing.*;
 5
 6 /**
 7  * @version 1.34 2015-06-16
 8  * @author Cay Horstmann
 9  */
10 public class SizedFrameTest
11 {
12    public static void main(String[] args)
13    {
14       EventQueue.invokeLater(() ->
15          {
16             JFrame frame = new SizedFrame();
17             frame.setTitle("SizedFrame");
18             frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
19             frame.setVisible(true);
20          });
21    }
22 }
23
24 class SizedFrame extends JFrame
25 {
26    public SizedFrame()
27    {
28       // get screen dimensions
29
30       Toolkit kit = Toolkit.getDefaultToolkit();
31       Dimension screenSize = kit.getScreenSize();
32       int screenHeight = screenSize.height;
33       int screenWidth = screenSize.width;
34
35       // set frame width, height and let platform pick screen location
36
37       setSize(screenWidth / 2, screenHeight / 2);
38       setLocationByPlatform(true);
39
40       // set frame icon
41
42       Image img = new ImageIcon("icon.gif").getImage();
43       setIconImage(img);
44    }
45 }

 1 package notHelloWorld;
 2
 3 import javax.swing.*;
 4 import java.awt.*;
 5
 6 /**
 7  * @version 1.33 2015-05-12
 8  * @author Cay Horstmann
 9  */
10 public class NotHelloWorld
11 {
12    public static void main(String[] args)
13    {
14       EventQueue.invokeLater(() ->
15          {
16             JFrame frame = new NotHelloWorldFrame();
17             frame.setTitle("NotHelloWorld");
18             frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
19             frame.setVisible(true);
20          });
21    }
22 }
23
24 /**
25  * A frame that contains a message panel
26  */
27 class NotHelloWorldFrame extends JFrame
28 {
29    public NotHelloWorldFrame()
30    {
31       add(new NotHelloWorldComponent());
32       pack();
33    }
34 }
35
36 /**
37  * A component that displays a message.
38  */
39 class NotHelloWorldComponent extends JComponent
40 {
41    public static final int MESSAGE_X = 75;
42    public static final int MESSAGE_Y = 100;
43
44    private static final int DEFAULT_WIDTH = 300;
45    private static final int DEFAULT_HEIGHT = 200;
46
47    public void paintComponent(Graphics g)
48    {
49       g.drawString("Not a Hello, World program", MESSAGE_X, MESSAGE_Y);
50    }
51
52    public Dimension getPreferredSize() { return new Dimension(DEFAULT_WIDTH, DEFAULT_HEIGHT); }
53 }

 1 package draw;
 2
 3 import java.awt.*;
 4 import java.awt.geom.*;
 5 import javax.swing.*;
 6
 7 /**
 8  * @version 1.33 2007-05-12
 9  * @author Cay Horstmann
10  */
11 public class DrawTest
12 {
13    public static void main(String[] args)
14    {
15       EventQueue.invokeLater(() ->
16          {
17             JFrame frame = new DrawFrame();
18             frame.setTitle("DrawTest");
19             frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
20             frame.setVisible(true);
21          });
22    }
23 }
24
25 /**
26  * A frame that contains a panel with drawings
27  */
28 class DrawFrame extends JFrame
29 {
30    public DrawFrame()
31    {
32       add(new DrawComponent());
33       pack();
34    }
35 }
36
37 /**
38  * A component that displays rectangles and ellipses.
39  */
40 class DrawComponent extends JComponent
41 {
42    private static final int DEFAULT_WIDTH = 400;
43    private static final int DEFAULT_HEIGHT = 400;
44
45    public void paintComponent(Graphics g)
46    {
47       Graphics2D g2 = (Graphics2D) g;
48
49       // draw a rectangle
50
51       double leftX = 100;
52       double topY = 100;
53       double width = 200;
54       double height = 150;
55
56       Rectangle2D rect = new Rectangle2D.Double(leftX, topY, width, height);
57       g2.draw(rect);
58
59       // draw the enclosed ellipse
60
61       Ellipse2D ellipse = new Ellipse2D.Double();
62       ellipse.setFrame(rect);
63       g2.draw(ellipse);
64
65       // draw a diagonal line
66
67       g2.draw(new Line2D.Double(leftX, topY, leftX + width, topY + height));
68
69       // draw a circle with the same center
70
71       double centerX = rect.getCenterX();
72       double centerY = rect.getCenterY();
73       double radius = 150;
74
75       Ellipse2D circle = new Ellipse2D.Double();
76       circle.setFrameFromCenter(centerX, centerY, centerX + radius, centerY + radius);
77       g2.draw(circle);
78    }
79
80    public Dimension getPreferredSize() { return new Dimension(DEFAULT_WIDTH, DEFAULT_HEIGHT); }
81 }

 1 package font;
 2
 3 import java.awt.*;
 4 import java.awt.font.*;
 5 import java.awt.geom.*;
 6 import javax.swing.*;
 7
 8 /**
 9  * @version 1.34 2015-05-12
10  * @author Cay Horstmann
11  */
12 public class FontTest
13 {
14    public static void main(String[] args)
15    {
16       EventQueue.invokeLater(() ->
17          {
18             JFrame frame = new FontFrame();
19             frame.setTitle("FontTest");
20             frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
21             frame.setVisible(true);
22          });
23    }
24 }
25
26 /**
27  * A frame with a text message component
28  */
29 class FontFrame extends JFrame
30 {
31    public FontFrame()
32    {
33       add(new FontComponent());
34       pack();
35    }
36 }
37
38 /**
39  * A component that shows a centered message in a box.
40  */
41 class FontComponent extends JComponent
42 {
43    private static final int DEFAULT_WIDTH = 300;
44    private static final int DEFAULT_HEIGHT = 200;
45
46    public void paintComponent(Graphics g)
47    {
48       Graphics2D g2 = (Graphics2D) g;
49
50       String message = "Happy  every  day!";
51
52       Font f = new Font("Serif", Font.BOLD, 36);
53       g2.setFont(f);
54
55       // measure the size of the message
56
57       FontRenderContext context = g2.getFontRenderContext();
58       Rectangle2D bounds = f.getStringBounds(message, context);
59
60       // set (x,y) = top left corner of text
61
62       double x = (getWidth() - bounds.getWidth()) / 2;
63       double y = (getHeight() - bounds.getHeight()) / 2;
64
65       // add ascent to y to reach the baseline
66
67       double ascent = -bounds.getY();
68       double baseY = y + ascent;
69
70       // draw the message
71
72       g2.drawString(message, (int) x, (int) baseY);
73
74       g2.setPaint(Color.LIGHT_GRAY);
75
76       // draw the baseline
77
78       g2.draw(new Line2D.Double(x, baseY, x + bounds.getWidth(), baseY));
79
80       // draw the enclosing rectangle
81
82       Rectangle2D rect = new Rectangle2D.Double(x, y, bounds.getWidth(), bounds.getHeight());
83       g2.draw(rect);
84    }
85
86    public Dimension getPreferredSize() { return new Dimension(DEFAULT_WIDTH, DEFAULT_HEIGHT); }
87 }

 1 package image;
 2
 3 import java.awt.*;
 4 import javax.swing.*;
 5
 6 /**
 7  * @version 1.34 2015-05-12
 8  * @author Cay Horstmann
 9  */
10 public class ImageTest
11 {
12    public static void main(String[] args)
13    {
14       EventQueue.invokeLater(() ->
15          {
16             JFrame frame = new ImageFrame();
17             frame.setTitle("ImageTest");
18             frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
19             frame.setVisible(true);
20          });
21    }
22 }
23
24 /**
25  * A frame with an image component
26  */
27 class ImageFrame extends JFrame
28 {
29    public ImageFrame()
30    {
31       add(new ImageComponent());
32       pack();
33    }
34 }
35
36 /**
37  * A component that displays a tiled image
38  */
39 class ImageComponent extends JComponent
40 {
41    private static final int DEFAULT_WIDTH = 300;
42    private static final int DEFAULT_HEIGHT = 200;
43
44    private Image image;
45
46    public ImageComponent()
47    {
48       image = new ImageIcon("blue-ball.gif").getImage();
49    }
50
51    public void paintComponent(Graphics g)
52    {
53       if (image == null) return;
54
55       int imageWidth = image.getWidth(null);
56       int imageHeight = image.getHeight(null);
57
58       // draw the image in the upper-left corner
59
60       g.drawImage(image, 0, 0, null);
61       // tile the image across the component
62
63       for (int i = 0; i * imageWidth <= getWidth(); i++)
64          for (int j = 0; j * imageHeight <= getHeight(); j++)
65             if (i + j > 0)
66                g.copyArea(0, 0, imageWidth, imageHeight, i * imageWidth, j * imageHeight);
67    }
68
69    public Dimension getPreferredSize()
70    {
71        return new Dimension(DEFAULT_WIDTH, DEFAULT_HEIGHT);
72    }
73 }

对如何创建框架，以及如何生成一个绘制图形的面板 ，以及如何在面板上绘制图形有了一定的了解，以及如何设置窗口中的字体，以及窗口的背景，还有字体大小字体颜色有了一定了解，通过对源码的查看，对如何设计窗口，以及窗口中的一些属性有了进一步的理解。