Java: Image Viewer Frame

 

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79

/**  * 版权所有 2022 涂聚文有限公司  * 许可信息查看：  * 描述：  * Core Java, Volume I： Fundamentals， Twelfth Edition by Cay S.Horstamnn  * Core Java, Volume II： Advanced Features， Twelfth Edition by Cay S.Horstamnn  * Core Java  * 历史版本： JDK 17.01  * 2022-09-12 创建者 geovindu  * 2022-09-12 添加 Lambda  * 2022-09-12 修改：date  * 接口类  * 2022-09-12 修改者：Geovin Du  * 生成API帮助文档的指令：  *javadoc - -encoding Utf-8 -d apidoc ImageViewerFrame.java  * Interface  * Record  * Annotation  * Enum  * */     package CoreJava.twelfth;   import java.awt.*; import java.io.*; import javax.swing.*;   /**  *  *  * */ public class ImageViewerFrame  extends JFrame{       private static final int DEFAULT_WIDTH = 300;     private static final int DEFAULT_HEIGHT = 400;     /**      *      *      * */     public ImageViewerFrame()     {         setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);           // use a label to display the images         var label = new JLabel();         add(label);           // set up the file chooser         var chooser = new JFileChooser();         chooser.setCurrentDirectory(new File("."));           // set up the menu bar         var menuBar = new JMenuBar();         setJMenuBar(menuBar);           var menu = new JMenu("File");         menuBar.add(menu);           var openItem = new JMenuItem("Open");         menu.add(openItem);         openItem.addActionListener(event ->         {             // show file chooser dialog             int result = chooser.showOpenDialog(null);               // if file selected, set it as icon of the label             if (result == JFileChooser.APPROVE_OPTION)             {                 String name = chooser.getSelectedFile().getPath();                 label.setIcon(new ImageIcon(name));             }         });           var exitItem = new JMenuItem("Exit");         menu.add(exitItem);         exitItem.addActionListener(event -> System.exit(0));     } }

　　

调用：

?

1 2 3 4 5 6 7 8

//            EventQueue.invokeLater(() ->            {                var Duframe = new ImageViewerFrame();                Duframe.setTitle("图片浏览 Image Viewer");                Duframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);                Duframe.setVisible(true);            });

　　

输出：

 

 

 

 

 

 

 

 https://horstmann.com/corejava/index.html

 

https://github.com/Nitin96Bisht/Java-Books/blob/master/Java%20-%20The%20Complete%20Reference%20-%2011%20Edition.pdf
https://github.com/rjdevaney/java-the-complete-reference-10th-edition-herbert-schildt
https://github.com/gnodivad/java-the-complete-reference
Java: The Complete Reference 12th herbschildt code
https://www.mheducation.ca/java-the-complete-reference-twelfth-edition-9781260463415-can