import java.awt.*;
import javax.swing.*;/*** @version 1.33 2015-05-12* @author Cay Horstmann*/
public class SimpleFrameTest
{public static void main(String[] args){EventQueue.invokeLater(() ->{SimpleFrame frame = new SimpleFrame();frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);});}
}class SimpleFrame extends JFrame
{private static final int DEFAULT_WIDTH = 300;private static final int DEFAULT_HEIGHT = 200;public SimpleFrame(){setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);}
}

import java.awt.*;
import javax.swing.*;/*** @version 1.34 2015-06-16* @author Cay Horstmann*/
public class SizedFrameTest
{public static void main(String[] args){EventQueue.invokeLater(() ->{JFrame frame = new SizedFrame();frame.setTitle("SizedFrame");frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);});}
}class SizedFrame extends JFrame
{public SizedFrame(){// get screen dimensionsToolkit kit = Toolkit.getDefaultToolkit();Dimension screenSize = kit.getScreenSize();int screenHeight = screenSize.height;int screenWidth = screenSize.width;// set frame width, height and let platform pick screen locationsetSize(screenWidth / 2, screenHeight / 2);setLocationByPlatform(true);// set frame iconImage img = new ImageIcon("icon.gif").getImage();setIconImage(img);      }
}

import java.awt.*;
import javax.swing.*;/*** @version 1.34 2015-06-16* @author Cay Horstmann*/
public class SizedFrameTest
{public static void main(String[] args){EventQueue.invokeLater(() ->{JFrame frame = new SizedFrame();frame.setTitle("SizedFrame");frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);});}
}class SizedFrame extends JFrame
{public SizedFrame(){// get screen dimensionsToolkit kit = Toolkit.getDefaultToolkit();Dimension screenSize = kit.getScreenSize();int screenHeight = screenSize.height;int screenWidth = screenSize.width;// set frame width, height and let platform pick screen locationsetSize(screenWidth / 2, screenHeight / 2);setLocationByPlatform(true);// set frame iconImage img = new ImageIcon("icon.gif").getImage();setIconImage(img);      }
}

import java.awt.*;
import java.awt.font.*;
import java.awt.geom.*;
import javax.swing.*;/*** @version 1.34 2015-05-12* @author Cay Horstmann*/
public class FontTest
{public static void main(String[] args){EventQueue.invokeLater(() ->{JFrame frame = new FontFrame();frame.setTitle("FontTest");frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);});}
}/*** A frame with a text message component*/
class FontFrame extends JFrame
{public FontFrame(){      add(new FontComponent());pack();}
}/*** A component that shows a centered message in a box.*/
class FontComponent extends JComponent
{private static final int DEFAULT_WIDTH = 300;private static final int DEFAULT_HEIGHT = 200;public void paintComponent(Graphics g){Graphics2D g2 = (Graphics2D) g;String message = "Hello, World!";Font f = new Font("Serif", Font.BOLD, 36);g2.setFont(f);// measure the size of the messageFontRenderContext context = g2.getFontRenderContext();Rectangle2D bounds = f.getStringBounds(message, context);// set (x,y) = top left corner of textdouble x = (getWidth() - bounds.getWidth()) / 2;double y = (getHeight() - bounds.getHeight()) / 2;// add ascent to y to reach the baselinedouble ascent = -bounds.getY();double baseY = y + ascent;// draw the messageg2.drawString(message, (int) x, (int) baseY);g2.setPaint(Color.LIGHT_GRAY);// draw the baselineg2.draw(new Line2D.Double(x, baseY, x + bounds.getWidth(), baseY));// draw the enclosing rectangleRectangle2D rect = new Rectangle2D.Double(x, y, bounds.getWidth(), bounds.getHeight());g2.draw(rect);}public Dimension getPreferredSize() { return new Dimension(DEFAULT_WIDTH, DEFAULT_HEIGHT); }
}

import java.awt.*;
import javax.swing.*;/*** @version 1.34 2015-05-12* @author Cay Horstmann*/
public class ImageTest
{public static void main(String[] args){EventQueue.invokeLater(() ->{JFrame frame = new ImageFrame();frame.setTitle("ImageTest");frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);});}
}/*** A frame with an image component*/
class ImageFrame extends JFrame
{public ImageFrame(){add(new ImageComponent());pack();}
}/*** A component that displays a tiled image*/
class ImageComponent extends JComponent
{private static final int DEFAULT_WIDTH = 300;private static final int DEFAULT_HEIGHT = 200;private Image image;public ImageComponent(){image = new ImageIcon("book.jpg.jpg").getImage();}public void paintComponent(Graphics g){if (image == null) return;int imageWidth = image.getWidth(null);int imageHeight = image.getHeight(null);// draw the image in the upper-left cornerg.drawImage(image, 0, 0, null);// tile the image across the componentfor (int i = 0; i * imageWidth <= getWidth(); i++)for (int j = 0; j * imageHeight <= getHeight(); j++)if (i + j > 0) g.copyArea(0, 0, imageWidth, imageHeight, i * imageWidth, j * imageHeight);}public Dimension getPreferredSize() { return new Dimension(DEFAULT_WIDTH, DEFAULT_HEIGHT); }
}