摘要：
This example demonstrates a 3x3 kernel that embosses an image. 阅读全文
摘要：
This example demonstrates how to create a filter that can modify any of the RGB pixel values in an image. Here's some code that uses the filter: 阅读全文
摘要：
To draw on a buffered image, create a graphics context on the buffered image. If the buffered image supports transparency, (see e661 确定图像中是否有透明像素), pi 阅读全文
摘要：
AffineTransform tx = new AffineTransform(); tx.scale(scalex, scaley); tx.shear(shiftx, shifty); tx.translate(x, y); tx.rotate(radians, bufferedImage.getWidth()/2, bufferedImage.getHei... 阅读全文
摘要：
// From an Image image = createImage(new FilteredImageSource(image.getSource(), new CropImageFilter(x, y, w, h))); // From a BufferedImage bufferedImage = bufferedImage.getSubimage... 阅读全文
摘要：
// This method returns an Image object from a buffered image public static Image toImage(BufferedImage bufferedImage) { return Toolkit.getDefaultToolkit().createImage(bufferedImage.g... 阅读全文
摘要：
A buffered image is a type of image whose pixels can be modified. For example, you can draw on a buffered image and then draw the resulting buffered i 阅读全文
摘要：
This example demonstrates how to brighten or darken an RGB buffered image by scaling the red, green, and blue values in the image. If the image is not 阅读全文
摘要：
Shape line = new Line2D.Float(x1, y1, x2, y2); Shape arc = new Arc2D.Float(x, y, w, h, start, extent, type); Shape oval = new Ellipse2D.Float(x, y, w, h); Shape rectangle = new Rectangle2D... 阅读全文
摘要：
AffineTransform tx = new AffineTransform(); tx.scale(scalex, scaley); tx.shear(shiftx, shifty); tx.translate(x, y); tx.rotate(radians); Shape newShape = tx.createTransformedShape(... 阅读全文
摘要：
GeneralPath shape = new GeneralPath(); shape.moveTo(x, y); shape.lineTo(x, y); shape.quadTo(controlPointX, controlPointY, x, y); shape.curveTo(controlPointX1, controlPointY1, controlP... 阅读全文
摘要：
Area shape = new Area(shape1); shape.add(new Area(shape2)); shape.subtract(new Area(shape3)); shape.intersect(new Area(shape4)); shape.exclusiveOr(new Area(shape5)); Related Exa... 阅读全文
摘要：
Shape getTextShape(Graphics2D g2d, String str, Font font) { FontRenderContext frc = g2d.getFontRenderContext(); TextLayout tl = new TextLayout(str, font, frc); return tl.getOut... 阅读全文
摘要：
This example applies a new font and background color to a part of the text. You can apply styles to as many parts of the text as you need. See TextAtt 阅读全文
摘要：
A font family refers to a set of font faces with a related typographic design. For example, the font faces in the family Lucida Sans Typewriter might 阅读全文
摘要：
To create a Font object to draw text, it is necessary to specify the font face name. This example demonstrates how to retrieve all the font face names 阅读全文
摘要：
In order to change the font of the text, you need to supply an attributed string to the LineBreakMeasurer. See e655 混合风格的文本 for an example. 阅读全文
摘要：
component.addMouseListener(new MyMouseListener()); public class MyMouseListener extends MouseAdapter { public void mouseClicked(MouseEvent evt) { if (evt.getClickCoun... 阅读全文
摘要：
You can get the key that was pressed either as a key character (which is a Unicode character) or as a key code (a special value representing a particu 阅读全文
摘要：
component.addMouseMotionListener(new MyMouseMotionListener()); public class MyMouseMotionListener extends MouseMotionAdapter { public void mouseMoved(MouseEvent evt) { ... 阅读全文
摘要：
component.addMouseListener(new MyMouseListener()); public class MyMouseListener extends MouseAdapter { public void mouseClicked(MouseEvent evt) { if ((evt.getModifier... 阅读全文
摘要：
If an event handler is specific to a component (that is, not shared by other components), there is no need to declare a class to handle the event. The 阅读全文
摘要：
An object wishing to fire item events must implement ItemSelectable. This example shows typical code that an object must implement to fire item events 阅读全文
摘要：
component.addFocusListener(new MyFocusListener()); public class MyFocusListener extends FocusAdapter { public void focusGained(FocusEvent evt) { // The component gain... 阅读全文
摘要：
Action events are fired by subclasses of AbstractButton and includes buttons, checkboxes, and menus. 阅读全文
摘要：
public class DropTargetComponent extends JComponent implements DropTargetListener { public DropTargetComponent() { new DropTarget(this, this); } public void dragE... 阅读全文
摘要：
This example demonstrates the code needed to make a component draggable. The object being transferred in this example is a string. 阅读全文
摘要：
The drop target in this example only accepts dropped String objects. A drop target must implement DropTargetListener and supply an implementation for 阅读全文
摘要：
Setting an image on the system clipboard requires a custom Transferable object to hold the image while on the clipboard. 阅读全文
摘要：
This examples defines methods for getting and setting text on the system clipboard. 阅读全文
摘要：
See also e551 精简的Applet. 阅读全文
摘要：
// See also e551 精简的Applet applet.showStatus("Your Message Here"); Related Examples 阅读全文
摘要：
// See also e551 精简的Applet public void init() { // Load audio clip AudioClip ac = getAudioClip(getDocumentBase(), "http://hostname.com/audio.au"); // Play audio clip... 阅读全文
摘要：
try { URL url = new URL("http://hostname/audio.au"); AudioClip ac = Applet.newAudioClip(url); ac.play(); } catch (MalformedURLException e) { } Related Examples ... 阅读全文
摘要：
An applet can be configured through the use of applet parameters. For example, the contents for a news ticker applet could be specified through an app 阅读全文
摘要：
// See also e551 精简的Applet try { URL url = new URL(getDocumentBase(), "http://hostname.com/page.html"); applet.getAppletContext().showDocument(url); } catch (Malformed... 阅读全文
摘要：
Every applet must subclass Applet. Here is an example of an HTML file that will cause the browser to load and start the applet: 阅读全文
摘要：
This is the simplest applet to animate an array of images. In practice, you should use double-buffering (which this example does not use) to eliminate 阅读全文
摘要：
The try/catch statement encloses some code and is used to handle errors and exceptions that might occur in that code. Here is the general syntax of th 阅读全文
摘要：
The if statement encloses some code which is executed only if a condition is true. The general syntax of the if statement is: The if statement has two 阅读全文