Examples of Applet

java.applet.Applet
An applet is a small program that is intended not to be run on its own, but rather to be embedded inside another application.
The Applet class must be the superclass of any applet that is to be embedded in a Web page or viewed by the Java Applet Viewer. The Applet class provides a standard interface between applets and their environment. @author Arthur van Hoff @author Chris Warth @version 1.83, 04/07/06 @since JDK1.0

Examples of java.applet.Applet

    public static void startApplet(String className, 
                                   String title, 
                                   String args[])
    {
       // local variables
       Applet a;
       Dimension appletSize;


       try 
       {
          // create an instance of your applet class
          a = (Applet) Class.forName(className).newInstance();
       }
       catch (ClassNotFoundException e) { return; }
       catch (InstantiationException e) { return; }
       catch (IllegalAccessException e) { return; }


       // initialize the applet
       a.init();
       a.start();
  
       // create new application frame window
       AppletFrame f = new AppletFrame(title);
  
       // add applet to frame window
       f.add("Center", a);
  
       // resize frame window to fit applet
       // assumes that the applet sets its own size
       // otherwise, you should set a specific size here.
       appletSize =  a.getSize();
       f.pack();
       f.setSize(appletSize);  


       // show the window
       f.show();

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Examples of java.applet.Applet

                if (focusLog.isLoggable(PlatformLogger.Level.FINER)) {
                    focusLog.finer("default component is " + toFocus);
                }
            }
            if (toFocus == null) {
                Applet applet = EmbeddedFrame.getAppletIfAncestorOf(this);
                if (applet != null) {
                    toFocus = applet;
                }
            }
            candidate = toFocus;

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Examples of java.applet.Applet

            Component toFocus = policy.getComponentAfter(rootAncestor, comp);
            if (toFocus == null) {
                toFocus = policy.getDefaultComponent(rootAncestor);
            }
            if (toFocus == null) {
                Applet applet = EmbeddedFrame.getAppletIfAncestorOf(this);
                if (applet != null) {
                    toFocus = applet;
                }
            }
      return toFocus;

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Examples of java.applet.Applet

    {
  String[] props = VersionHelper.PROPS;  // system/applet properties
  if (env == null) {
      env = new Hashtable(11);
  }
  Applet applet = (Applet)env.get(Context.APPLET);


  // Merge property values from env param, applet params, and system
  // properties.  The first value wins:  there's no concatenation of
  // colon-separated lists.
  // Read system properties by first trying System.getProperties(),
  // and then trying System.getProperty() if that fails.  The former
  // is more efficient due to fewer permission checks.
  //
  String[] jndiSysProps = helper.getJndiProperties();
  for (int i = 0; i < props.length; i++) {
      Object val = env.get(props[i]);
      if (val == null) {
    if (applet != null) {
        val = applet.getParameter(props[i]);
    }
    if (val == null) {
        // Read system property.
        val = (jndiSysProps != null)
      ? jndiSysProps[i]

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Examples of java.applet.Applet

        String icon = getIconName(comp);
        if (icon != null)
            setAttribute(TAG_ICON, icon);


        if (comp instanceof Applet) {
            Applet applet = (Applet)comp;
            setAttribute(TAG_PARAMS, encodeParams(applet));
            java.net.URL url = applet.getDocumentBase();
            setAttribute(TAG_DOCBASE, url != null
                         ? url.toString() : "null");
        }


        Container parent = resolver.getHierarchy().getParent(comp);

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Examples of java.applet.Applet

            // Don't subtract for index mismatch, since ordering changes are
            // common. 
        }


        if (comp instanceof Applet) {
            Applet applet = (Applet)comp;
            String params = getAttribute(TAG_PARAMS);
            if (null != params) {
                String params2 = encodeParams(applet);
                if (expressionMatch(params, params2))
                    weight += MW_PARAMS;
            }
            String docBase = getAttribute(TAG_DOCBASE);
            if (null != docBase) {
                java.net.URL url = applet.getDocumentBase();
                if (url != null && expressionMatch(docBase, url.toString()))
                    weight += MW_DOCBASE;
            }
            // No negative weighting here
        }

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Examples of java.applet.Applet

        }
    }


    // Regression for HARMONY-3777
    public void test_instantiate_with_applet() throws Exception {
        Applet applet = (Applet) Beans.instantiate(null, "java.applet.Applet");
        assertNotNull(applet.getAppletContext());
        assertTrue(applet.isActive());
    }

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Examples of java.applet.Applet

  /** Opens the specified URL (default is the ImageJ home page). */
  public void run(String theURL) {
    if (error) return;
    if (theURL==null || theURL.equals(""))
      theURL = "http://rsb.info.nih.gov/ij/";
    Applet applet = IJ.getApplet();
    if (applet!=null) {
      try {
        applet.getAppletContext().showDocument(new URL(theURL), "_blank" );
      } catch (Exception e) {}
      return;
    }
    try {openURL(theURL);}
    catch (IOException e) {}

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Examples of java.applet.Applet

    }
  }
  
  // Plugins>Macros>Open Startup Macros command
  void openStartupMacros() {
    Applet applet = IJ.getApplet();
    if (applet!=null) {
      IJ.run("URL...", "url=http://rsb.info.nih.gov/ij/applet/StartupMacros.txt");
    } else {
      String path = IJ.getDirectory("macros")+"/StartupMacros.txt";
      File f = new File(path);

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Examples of java.applet.Applet

      else
        str2 = "<lf>";
    }
    sb.append("  line.separator: " + str1 + str2+"\n");
      
    Applet applet = IJ.getApplet();
    if (applet!=null) {
      sb.append("\n");
      sb.append("  code base: "+applet.getCodeBase()+"\n");
      sb.append("  document base: "+applet.getDocumentBase()+"\n");
      sb.append("  sample images dir: "+Prefs.getImagesURL()+"\n");
      TextWindow tw = new TextWindow("Properties", new String(sb), 400, 400);
      return;
    }
    sb.append("\n");

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