{"id":27152,"date":"2021-05-12T23:10:06","date_gmt":"2021-05-13T03:10:06","guid":{"rendered":"http:\/\/bangla.salearningschool.com\/recent-posts\/loading-images-programming-code-examples-java-j2ee-j2me-applets-and-basic-graphics\/"},"modified":"2021-05-12T23:10:06","modified_gmt":"2021-05-13T03:10:06","slug":"loading-images-programming-code-examples-java-j2ee-j2me-applets-and-basic-graphics","status":"publish","type":"post","link":"http:\/\/bangla.sitestree.com\/?p=27152","title":{"rendered":"Loading Images #Programming Code Examples #Java\/J2EE\/J2ME #Applets and Basic Graphics"},"content":{"rendered":"
\nJavaMan1.java Applet that loads an image from a relative URL.\n*************************************************************\nimport java.applet.Applet;\nimport java.awt.*;\n\n\/** An applet that loads an image from a relative URL. \n *\n>>>>>>>>>>>>>>>>>>>\n\npublic class JavaMan1 extends Applet {\n  private Image javaMan;\n\n  public void init() {\n    javaMan = getImage(getCodeBase(),"images\/Java-Man.gif");\n  }\n\n  public void paint(Graphics g) {\n    g.drawImage(javaMan, 0, 0, this);\n  }\n}\n>>>>>>>>>>>>>>>>>>>>\nJavaMan2.java Illustrates loading an image from an absolute URL.\n********************\nimport java.applet.Applet;\nimport java.awt.*;\nimport java.net.*;\n\n\/** An applet that loads an image from an absolute\n *  URL on the same machine that the applet came from.\n *\n***********************\n\npublic class JavaMan2 extends Applet {\n  private Image javaMan;\n\n  public void init() {\n    try {\n      URL imageFile = new URL("http:\/\/www.corewebprogramming.com" +\n                              "\/images\/Java-Man.gif");\n      javaMan = getImage(imageFile);\n    } catch(MalformedURLException mue) {\n      showStatus("Bogus image URL.");\n      System.out.println("Bogus URL");\n    }\n  }\n\n  public void paint(Graphics g) {\n    g.drawImage(javaMan, 0, 0, this);\n  }\n}\n>>>>>>>>>>>>>>>>>>>>>\n# JavaMan3.java An application that loads an image from a local file. Uses the following image and two files:\n\n    * Java-Man.gif which should be placed in images subdirectory.\n    * WindowUtilities.java Simplifies the setting of native look and feel.\n    * ExitListener.java WindowListener to support terminating the application.\n*******************\nJavaMan3.java\n*******************\nimport java.awt.*;\nimport javax.swing.*;\n\n\/** An application that loads an image from a local file. \n *  Applets are not permitted to do this.\n *\n**********************\n\nclass JavaMan3 extends JPanel {\n  private Image javaMan;\n\n  public JavaMan3() {\n    String imageFile = System.getProperty("user.dir") +\n                       "\/images\/Java-Man.gif";\n    javaMan = getToolkit().getImage(imageFile);\n    setBackground(Color.white);\n  }\n\n  public void paintComponent(Graphics g) {\n    super.paintComponent(g);\n    g.drawImage(javaMan, 0, 0, this);\n  }\n  \n  public static void main(String[] args) {\n    JPanel panel = new JavaMan3();\n    WindowUtilities.setNativeLookAndFeel();\n    WindowUtilities.openInJFrame(panel, 380, 390);\n  }   \n}\n>>>>>>>>>>>>>>>>>>\nPreload.java An application that demonstrates the effect of preloading an image before drawing. Specify -preload as a command-line argument to preload the image. In this case, the prepareImage method is called to immediately start a thread to load the image. Thus, the image is ready to display when the user later selects the Display Image button. \n>>>>>>>>>>>>>>>>>>>\nimport java.awt.*;\nimport java.awt.event.*;\nimport javax.swing.*;\nimport java.net.*;\n\n\/** A class that compares the time to draw an image preloaded\n *  (getImage, prepareImage, and drawImage) vs. regularly\n *  (getImage and drawImage).\n *  
\n *  The answer you get the regular way is dependent on the\n *  network speed and the size of the image, but if you assume\n *  you load the applet "long" (compared to the time the image\n *  loading requires) before pressing the button, the drawing\n *  time in the preloaded version depends only on the speed of\n *  the local machine.\n *\n **********************\n\npublic class Preload extends JPanel implements ActionListener {\n\n  private JTextField timeField;\n  private long start = 0;\n  private boolean draw = false;\n  private JButton button;\n  private Image plate;\n\n  public Preload(String imageFile, boolean preload) {\n    setLayout(new BorderLayout());\n    button = new JButton("Display Image");\n    button.setFont(new Font("SansSerif", Font.BOLD, 24));\n    button.addActionListener(this);\n    JPanel buttonPanel = new JPanel();\n    buttonPanel.add(button);\n    timeField = new JTextField(25);\n    timeField.setEditable(false);\n    timeField.setFont(new Font("SansSerif", Font.BOLD, 24));\n    buttonPanel.add(timeField);\n    add(buttonPanel, BorderLayout.SOUTH);\n    registerImage(imageFile, preload);\n\n  }\n\n  \/** No need to check which object caused this,\n   *  since the button is the only possibility.\n   *\/\n\n  public void actionPerformed(ActionEvent event) {\n    draw = true;\n    start = System.currentTimeMillis();\n    repaint();\n  }\n\n  \/\/ Do getImage, optionally starting the loading.\n\n  private void registerImage(String imageFile, boolean preload) {\n    try {\n      plate = getToolkit().getImage(new URL(imageFile));\n      if (preload) {\n        prepareImage(plate, this);\n      }\n    } catch(MalformedURLException mue) {\n      System.out.println("Bad URL: " + mue);\n    }\n  }\n\n  \/** If button has been clicked, draw image and\n   *  show elapsed time. Otherwise, do nothing.\n   *\/\n\n  public void paintComponent(Graphics g) {\n    super.paintComponent(g);\n    if (draw) {\n      g.drawImage(plate, 0, 0, this);\n      showTime();\n    }\n  }\n\n  \/\/ Show elapsed time in textfield.\n\n  private void showTime() {\n    timeField.setText("Elapsed Time: " + elapsedTime() +\n                      " seconds.");\n  }\n\n  \/\/ Time in seconds since button was clicked.\n\n  private double elapsedTime() {\n    double delta = (double)(System.currentTimeMillis() - start);\n    return(delta\/1000.0);\n  }\n\n  public static void main(String[] args) {\n    JPanel preload;\n\n    if (args.length == 0) {\n      System.out.println("Must provide URL");\n      System.exit(0);\n    }\n    if (args.length == 2 && args[1].equals("-preload")) {\n      preload = new Preload(args[0], true);\n    } else {\n      preload = new Preload(args[0], false);\n    }\n\n    WindowUtilities.setNativeLookAndFeel();\n    WindowUtilities.openInJFrame(preload, 1000, 750);\n  }\n}\n< <<<<<<<<<<<<<<<<<\n<\/p><\/pre>\n
Note: Brought from our old site: http:\/\/www.salearningschool.com\/example_codes\/ on Jan 2nd, 2017 From: http:\/\/sitestree.com\/?p=10384
 Categories:Programming Code Examples, Java\/J2EE\/J2ME, Applets and Basic Graphics
Tags:Java\/J2EE\/J2MEApplets and Basic Graphics
 Post Data:2017-01-02 16:04:39<\/p>\n
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JavaMan1.java Applet that loads an image from a relative URL. ************************************************************* import java.applet.Applet; import java.awt.*; \/** An applet that loads an image from a relative URL. * >>>>>>>>>>>>>>>>>>> public class JavaMan1 extends Applet { private Image javaMan; public void init() { javaMan = getImage(getCodeBase(),"images\/Java-Man.gif"); } public void paint(Graphics g) { g.drawImage(javaMan, 0, 0, this); } … <\/p>\n
Continue reading<\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1917],"tags":[],"class_list":["post-27152","post","type-post","status-publish","format-standard","hentry","category-fromsitestree-com","item-wrap"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":10487,"url":"http:\/\/bangla.sitestree.com\/?p=10487","url_meta":{"origin":27152,"position":0},"title":"Loading Images","author":"","date":"August 29, 2015","format":false,"excerpt":"JavaMan1.java Applet that loads an image from a relative URL. ************************************************************* import java.applet.Applet; import java.awt.*; \/** An applet that loads an image from a relative URL. \u00a0* >>>>>>>>>>>>>>>>>>> public class JavaMan1 extends Applet { \u00a0 private Image javaMan; \u00a0 public void init() { \u00a0\u00a0\u00a0 javaMan = getImage(getCodeBase(),\"images\/Java-Man.gif\"); \u00a0 } \u00a0\u2026","rel":"","context":"In "Code . Programming Samples . \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae \u0989\u09a6\u09be\u09b9\u09b0\u09a8"","block_context":{"text":"Code . Programming Samples . \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae \u0989\u09a6\u09be\u09b9\u09b0\u09a8","link":"http:\/\/bangla.sitestree.com\/?cat=1417"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":10483,"url":"http:\/\/bangla.sitestree.com\/?p=10483","url_meta":{"origin":27152,"position":1},"title":"Basic template for a Java applet","author":"","date":"August 29, 2015","format":false,"excerpt":"AppletTemplate.java >>>>>>>>>>>>>>>>>>>> import java.applet.Applet; import java.awt.*; ******************** public class AppletTemplate extends Applet { \u00a0 \/\/ Variable declarations. \u00a0 public void init() { \u00a0\u00a0\u00a0 \/\/ Variable initializations, image loading, etc. \u00a0 } \u00a0 public void paint(Graphics g) { \u00a0\u00a0\u00a0 \/\/ Drawing operations. \u00a0 } } >>>>>>>>>>>>>>>>>>>>>","rel":"","context":"In "Code . Programming Samples . \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae \u0989\u09a6\u09be\u09b9\u09b0\u09a8"","block_context":{"text":"Code . Programming Samples . \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae \u0989\u09a6\u09be\u09b9\u09b0\u09a8","link":"http:\/\/bangla.sitestree.com\/?cat=1417"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":10526,"url":"http:\/\/bangla.sitestree.com\/?p=10526","url_meta":{"origin":27152,"position":2},"title":"HelloWWW.java Basic Hello World (Wide Web) Applet","author":"","date":"August 29, 2015","format":false,"excerpt":"********************* import java.applet.Applet; import java.awt.*; ********************* \u00a0 public class HelloWWW extends Applet { \u00a0 private int fontSize = 40; \u00a0 \u00a0 public void init() { \u00a0\u00a0\u00a0 setBackground(Color.black); \u00a0\u00a0\u00a0 setForeground(Color.white); \u00a0\u00a0\u00a0 setFont(new Font(\"SansSerif\", Font.BOLD, fontSize)); \u00a0 } \u00a0 \u00a0 public void paint(Graphics g) { \u00a0\u00a0\u00a0 g.drawString(\"Hello, World Wide Web.\", 5, fontSize+5);\u2026","rel":"","context":"In "Code . Programming Samples . \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae \u0989\u09a6\u09be\u09b9\u09b0\u09a8"","block_context":{"text":"Code . Programming Samples . \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae \u0989\u09a6\u09be\u09b9\u09b0\u09a8","link":"http:\/\/bangla.sitestree.com\/?cat=1417"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":27148,"url":"http:\/\/bangla.sitestree.com\/?p=27148","url_meta":{"origin":27152,"position":3},"title":"Basic template for a Java applet #Programming Code Examples #Java\/J2EE\/J2ME #Applets and Basic Graphics","author":"Author-Check- Article-or-Video","date":"May 12, 2021","format":false,"excerpt":"AppletTemplate.java >>>>>>>>>>>>>>>>>>>> import java.applet.Applet; import java.awt.*; ******************** public class AppletTemplate extends Applet { \/\/ Variable declarations. public void init() { \/\/ Variable initializations, image loading, etc. } public void paint(Graphics g) { \/\/ Drawing operations. } } >>>>>>>>>>>>>>>>>>>>> Note: Brought from our old site: http:\/\/www.salearningschool.com\/example_codes\/ on Jan 2nd, 2017 From:\u2026","rel":"","context":"In "FromSitesTree.com"","block_context":{"text":"FromSitesTree.com","link":"http:\/\/bangla.sitestree.com\/?cat=1917"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":10308,"url":"http:\/\/bangla.sitestree.com\/?p=10308","url_meta":{"origin":27152,"position":4},"title":"Message.java Applet that reads customization parameters from an HTML file","author":"","date":"August 26, 2015","format":false,"excerpt":"******************* Message.java Applet that reads customization parameters from an HTML file ******************* import java.applet.Applet; import java.awt.*; **************** \u00a0 public class Message extends Applet { \u00a0 private int fontSize; \u00a0 private String message; \u00a0 \u00a0 public void init() { \u00a0\u00a0\u00a0 setBackground(Color.black); \u00a0\u00a0\u00a0 setForeground(Color.white); \u00a0\u00a0 \u00a0 \u00a0\u00a0\u00a0 \/\/ Base font size on\u2026","rel":"","context":"In "Code . Programming Samples . \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae \u0989\u09a6\u09be\u09b9\u09b0\u09a8"","block_context":{"text":"Code . Programming Samples . \u09aa\u09cd\u09b0\u09cb\u0997\u09cd\u09b0\u09be\u09ae \u0989\u09a6\u09be\u09b9\u09b0\u09a8","link":"http:\/\/bangla.sitestree.com\/?cat=1417"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":10379,"url":"http:\/\/bangla.sitestree.com\/?p=10379","url_meta":{"origin":27152,"position":5},"title":"Applet handle mouse events","author":"","date":"August 27, 2015","format":false,"excerpt":"ClickReporter.java A simple applet that uses the class to handle mouse events import java.applet.Applet; import java.awt.*; \/** Prints a message saying where the user clicks. * Uses an external listener. * public class ClickReporter extends Applet { public void init() { setBackground(Color.yellow); addMouseListener(new ClickListener()); } }","rel":"","context":"In "Code . 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