*/publicsynchronizedvoiddraw(Graphics2D g){Window window=screen.getFullScreenWindow();//使用指定的算法实现图像的显示--要求“文本抗锯齿提示键”和"文本抗锯齿提示值"g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,RenderingHints.VALUE_TEXT_ANTIALIAS_ON);//绘制背景图像g.setColor(window.getBackgroun...
//Reference the required Java libraries import java.applet.Applet; import java.awt.*;//The applet code public class FirstApplet extends Applet { public void paint(Graphics g) { //Draw a rectangle width=250, height=100 g.drawRect(0, 0, 250, 100); //Set the color to blue g.setColor(...
Rectangle2D.Float和Rectangle2D.Double子类指定了浮点和双精度的矩形。例如: // draw Rectangle2D.Doubleg2.draw(newRectangle2D.Double(x, y, rectwidth, rectheight)); RoundRectangle2D类表示具有圆角的矩形,由位置(x, y)、尺寸(w x h)和圆角的宽度和高度定义。RoundRectangle2D.Float和RoundRectangle2D.Doubl...
public void draw(Graphics2D g2, float x, float y) 将这个TextLayout对象画到Graphics2D对象g2上的x,y坐标处。 public Rectangle2D getBounds() 返回TextLayout对象的区域。 例: View Code 3.3 绘制图像 绘制图像用到BufferedImage类,BufferedImage类是指存放图像数据的可访问的缓冲。其构造函数为: public Buffer...
اتحدة 23°C Cloudy DUL Enig F4 FS F10 F11 612 Entt $ % & p3 3 E 4 6 B Ri Ту ZUG P import java.applet.Applet; import java.awt.Graphics; public class Draw extends Applet { int Ox1 = 50; int Oy1 = 50; int Ox2 =...
Convenience to calculate the intersection of two rectangles without allocating a new rectangle. static intcomputeStringWidth(FontMetricsfm,Stringstr) Compute the width of the string using a font with the specified "metrics" (sizes). staticRectanglecomputeUnion(int x, int y, int width, int height,...
import java applet Applet;import java awt *;//The applet code public class FirstApplet extends Applet { public void paint(Graphics g) { //Draw a rectangle width= height= g drawRect( );//Set the color to blue g setColor(Color blue);//Write the message to the web page g ...
ClipImage.java contains the complete code for this applet. The applet requires the clouds.jpg image file. The clipping path is defined by the intersection of an ellipse and a rectangle whose dimensions are set randomly. The ellipse is passed to the setClip method, and then clip is called to...
4.在运行小程序的HTML文件中可以使用codebase属性指定小程序的字节码所驻留的目录。如果不使用 codebase属性,小程序的字节码文件必须和运行它的HTML文件在同一目录中。编写一个小程序并将小程序 的字节码存放在某个目录中,比如C:\5000;把运行该小程序的HTML文件(注意其中的codebase属性): appletcode=你的小程序的...
在java GUI中,任何想要显示的组件必须存在于一个窗口包含阶层(containment hierarchy)中。这个概念类似于树(或者像文件目录系统一样的递归结构),每个组件类似于树中的中间节点和叶子节点,因此这里我们可以把它理解为包含关系树。这个树的树根必须是顶层窗口,在Swing中顶层窗口包括:JFrame, JDialog, 和 JApplet. ...