这个压缩包里的都是超级经典的java例子

				
				
				
				Determining When an Item Is No Longer on the System Clipboard (Java Developers Almanac Example)
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				
				The Java Developers Almanac 1.4
				
				        Order this book from Amazon.
				    
				
				
				
				
				
				
				
				
				
				
				
				
				
								google_ad_client = "pub-6001183370374757";
				google_ad_width = 120;
				google_ad_height = 600;
				google_ad_format = "120x600_as";
				google_ad_channel = "4777242811";
				google_ad_type = "text_image";
				google_color_border = "FFFFFF";
				google_color_bg = "FFFFFF";
				google_color_link = "6666CC";
				google_color_url = "6666CC";
				google_color_text = "000000";
				//-->   
				
				Home
				    >
				    List of Packages
				    >
				
				    
				    java.awt.datatransfer
				         [3 examples]
				    
				
				  e639. Determining When an Item Is No Longer on the System Clipboard
				
				When an item is set on the system clipboard, it is possible to be
				notified when that item is no longer on the clipboard.  This is done
				by including a clipboard owner object when setting the item.
				
				
				    // This class serves as the clipboard owner.
				    class MyClipboardOwner implements ClipboardOwner {
				        // This method is called when this object is no longer
				        // the owner of the item on the system clipboard.
				        public void lostOwnership(Clipboard clipboard, Transferable contents) {
				            // To retrieve the contents, see
				            // e637 Getting and Setting Text on the System Clipboard
				        }
				    }
				
				Here's some code that uses the clipboard owner:
				
				    // Create a clipboard owner
				    ClipboardOwner owner = new MyClipboardOwner();
				    
				    // Set a string on the system clipboard and include the owner object
				    StringSelection ss = new StringSelection("A String");
				    Toolkit.getDefaultToolkit().getSystemClipboard().setContents(ss, owner);
				
				
				
				
				             Related Examples
				
				
				
				
				e637. 
				    Getting and Setting Text on the System Clipboard
				
				
				
				e638. 
				    Getting and Setting an Image on the System Clipboard
				
				
				
				
				
				
				
				
				© 2002 Addison-Wesley.