Swing编程的问题..>>急急急..在线等..>>> 请问下,如何给面板(JPanel.JWindow.JFrame)设置背景图片......以前学VB的时候,就直接给个它设个属性就可以了..但是好像Java不行..@请问下,如果要给它设置,应该这么办.?? 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 import javax.swing.JPanel;import java.awt.Image;import java.awt.Graphics;import javax.swing.JFrame;/** * <p>Title: </p> * * <p>Description: </p> * * <p>Copyright: Copyright (c) 2006</p> * * <p>Company: </p> * * @author not attributable * @version 1.0 */public class AskeyImagePanel extends JPanel{ Image img = null; public AskeyImagePanel() { img = java.awt.Toolkit.getDefaultToolkit().getImage(AskeyImagePanel.class. getResource("default.jpg")); } public AskeyImagePanel(String imagename) { img = java.awt.Toolkit.getDefaultToolkit().getImage(AskeyImagePanel.class. getResource(imagename)); } public void paint(Graphics g) { setOpaque(false); g.drawImage(img, 0, 0, this.getSize().width, this.getSize().height, this); super.paint(g); } public static void main(String[] args){ JFrame jf = new JFrame(); jf.setTitle("Test"); AskeyImagePanel ft = new AskeyImagePanel(); jf.getContentPane().add(ft); jf.show(); }} 急~~求高手帮我解决一个字符串哈希算法的问题!! 不要走啊~~~~~看看我的程序好吗????? 请路过的高手指点 web.xml里配置配置的过滤怎么理解 各位高手,请问怎样进行全角,半角检查? something about ResultSet,will someone give me a hand? 谁能提供一个ArrayList 或 Vector 的分页程序代码? 对SQL Server2000比较熟的朋友请进 一个连接池化的问题,100分,不够再加! 求助 发现一个比较大的问题 求一Applet程序!
import javax.swing.JPanel;
import java.awt.Image;
import java.awt.Graphics;
import javax.swing.JFrame;/**
* <p>Title: </p>
*
* <p>Description: </p>
*
* <p>Copyright: Copyright (c) 2006</p>
*
* <p>Company: </p>
*
* @author not attributable
* @version 1.0
*/
public class AskeyImagePanel extends JPanel{
Image img = null; public AskeyImagePanel() {
img = java.awt.Toolkit.getDefaultToolkit().getImage(AskeyImagePanel.class.
getResource("default.jpg"));
} public AskeyImagePanel(String imagename) {
img = java.awt.Toolkit.getDefaultToolkit().getImage(AskeyImagePanel.class.
getResource(imagename));
} public void paint(Graphics g) {
setOpaque(false);
g.drawImage(img, 0, 0, this.getSize().width, this.getSize().height, this);
super.paint(g);
} public static void main(String[] args){
JFrame jf = new JFrame();
jf.setTitle("Test");
AskeyImagePanel ft = new AskeyImagePanel();
jf.getContentPane().add(ft);
jf.show();
}
}