Tài liệu Introduction to Java: 21 java awt event Reference pptx

... are grouped into so-called “packages.” Two of these packages are called java. awt an d java. applet”. The directive “import java. awt. *;” makes all the classes from the package java. awt available ... catch to handle er rors. E rror handling is a complex topic, which we will return to in Chapter 8. 3.7.1 Exceptions The term exception is used to refer to the type of error that o...

Ngày tải lên: 19/01/2014, 16:20

... ComponentEvent, EventLis- tener 21. 8 ContainerAdapter ★ java. lang.Object java. awt. Window java. awt. ScrollPane java. awt. Panel java. awt. Component java. awt. Container Description The ContainerAdapter class ... listeners consumes an event by using consume(), the event will not be processed by the event source peer. Class Definition public abstract class java. awt. e...

Ngày tải lên: 21/01/2014, 06:20

... it will eventually propagate to the top level of the system. 13.3.1 AWTError Method Constructor public AWTError (String message) The sole constructor creates an AWTError with a detail message ... classes in java. awt; you may, however, find it convenient to throw AWTException within your own code. IllegalComponentStateException is another Exception subclass, which is new to Java 1.1....

Ngày tải lên: 21/01/2014, 06:20

... 1.0 event model. When using the 1.1 event model, all events are represented by subclasses of java. awt. AWTEvent. Class Definition public class java. awt. Event extends java. lang.Object implements java. io.Serializable ... synchronized AWTEvent getNextEvent() throws InterruptedException; public synchronized AWTEvent peekEvent(); public synchronized AWTEvent peekEvent (int id); pu...

Ngày tải lên: 21/01/2014, 06:20

... Definition public class java. awt. datatransfer.StringSelection extends java. lang.Object implements java. awt. datatransfer.ClipboardOwner, java. awt. datatransfer.Transferable { // Constructor public StringSelection(String ... Transferable.getTransferData(DataFla- vor) to indicate that the DataFlavor requested is not available. Class Definition public class java. awt. datatransfe...

Ngày tải lên: 21/01/2014, 06:20

... Definition public class java. awt. image.ImageFilter extends java. lang.Object implements java. awt. image.ImageConsumer, java. lang.Cloneable { // Variables protected ImageConsumer consumer; // Constructors public ... additional frames. TOPDOWNLEFTRIGHT public final static int TOPDOWNLEFTRIGHT Hint flag for the setHints(int) method; indicates that pixels will be deliv- ered in a top to...

Ngày tải lên: 26/01/2014, 07:20

... 22:27 java. awt. Component java. awt. Container java. awt. Window java. lang.Object java. awt. Dialog java. awt. FileDialog } Interface Methods setDirectory public abstract void setDirectory (String directory) Parameters ... interface java. awt. peer.CanvasPeer extends java. awt. peer.ComponentPeer { } See Also ComponentPeer 23.3 CheckboxMenuItemPeer java. awt. Component jav...

Ngày tải lên: 26/01/2014, 07:20

... libraries available to you in Java. With the help of this book, you should get an excellent grasp of the java. awt , java. awt. image , java. awt. data- transfer , java. awt. event , and java. applet packages, ... components, AWT provides facilities for manipulating images and generating graphics. This book is a complete programmer’s guide and reference to the java. awt...

Ngày tải lên: 14/12/2013, 12:15

... results, using four consumers to display the image four times. Example 12–3: Mandelbrot Program // Java 1.1 only import java. awt. *; import java. awt. image.*; import java. applet.*; public class Mandelbrot ... set to 0. If bits is too large (greater than 8), size is too large (greater than 2 bits ), or the red, green, and blue arrays are too small to hold the map, the run-time...

Ngày tải lên: 21/01/2014, 06:20

... a Vector of AudioStreams) as its sole parameter. The construc- tor converts the sequence of audio streams into a single stream to be played in order. An example follows: Vector v = new Vector ... security risk, Java goes to great lengths to ensure the integrity of the program executing and to prevent it from performing any unauthorized tasks. An applet is a specific type of Java Co...

Ngày tải lên: 21/01/2014, 06:20