java¼¼ÄÜ°ÙÁ¶001 Test
package CH1;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class exercise001 extends JApplet {
// ¶¨Òå±äÁ¿
private JColorChooser chooser = new JColorChooser();
private JButton button = new JButton("Show Color Chooser");
private JDialog dialog;
// ³õʼ»¯³ÌÐò
public void init() {
// ÖÆ×÷½çÃæÈÝÆ÷
Container contentPane = getContentPane();
contentPane.setLayout(new FlowLayout());
contentPane.add(button, BorderLayout.CENTER);
// Ñ¡Ôñ¿ò
chooser.setPreviewPanel(new PreviewPanel());
// ʱ¼ä¼àÌý
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (dialog == null)
dialog = JColorChooser.createDialog(exercise001.this,
"Pick A Color", false, chooser, null, null);
dialog.setVisible(true);
}
});
}
// ÖÆ×÷Ô¤ÀÀÃæ°å
class PreviewPanel extends JPanel {
public PreviewPanel() {
setPreferredSize(new Dimension(0, 100));
setBorder(BorderFactory.createRaisedBevelBorder());
}
public void paintComponent(Graphics g) {
Dimension size = getSize();
g.setColor(getForeground());
g.fillRect(0, 0, size.width, size.height);
}
}
}
Ïà¹ØÎĵµ£º
Finalizer ²»¿É¼Æ»®µÄ,Ò²ÊÇΣÏÕµÄ,Ò»°ãÒ²ÊDz»±ØÒªµÄ.
²»ÄÜÔÚfinalizerÖзÅÈκÎÓëÒÀÀµÊ±¼äÏà¹ØµÄ²Ù×÷,ÒòΪÄã²»ÖªµÀËüʲôʱºò±»Ö´ÐÐ. ±ÈÈçÔÚfinalizerÖйرÕÎļþµÄ×ö·¨¾ÍÊÇ´íÎóµÄ, ¸ù¾ÝJVMµÄʵÏÖ·½Ê½²»Í¬,ÓпÉÄܵ¼Ö´ò¿ªµÄÎļþÊý¹ý¶à¶øÎÞ·¨ÔÙ´ò¿ªÎļþ.
Ò²²»ÄÜÔÚfinalizerÖиıä״̬,Èç¸øÊý¾Ý¿â½âËøµÈ.
finalizer»¹ÄÜ´øÀ´Ñ ......
×î½üÒ»¶Îʱ¼ä¿´µ½ÁËylmf os һʱÊÖÑ÷°²×°ÁË¡£×¼±¸°ÑʹÓÃÖÐÓöµ½µÄÎÊÌâ½øÐмǼ£¬Òѱ»²»Ê±Ö»Ðè¡£
°²×°java·½·¨2ÖÖ£º
µÚÒ»ÖÖ£¬ÔÚÖÕ¶ËÖ´ÐÐÃüÁî½øÐÐÏÂÔØ¡£
´ò¿ªÖնˣ¬Ö´ÐÐÒÔÏÂÃüÁϵͳ»á×Ô¶¯ÏÂÔØJDK £¬²¢°²×°¡£
sudo apt-get install sun-java6-jdk
Èç¹û¿Õ¼ä²»¸»Ô£µÄ»°£¬¿ÉÒÔÖ»×°JRE
sudo apt-get install sun-java6- ......
ÔÚJSPÀ»ñÈ¡¿Í»§¶ËµÄIPµØÖ·µÄ·½·¨ÊÇ£ºrequest.getRemoteAddr()£¬ÕâÖÖ·½·¨Ôڴ󲿷ÖÇé¿ö϶¼ÊÇÓÐЧµÄ¡£µ«ÊÇÔÚͨ¹ýÁËApache,SquidµÈ·´Ïò´úÀíÈí¼þ¾Í²»ÄÜ»ñÈ¡µ½¿Í»§¶ËµÄÕæʵIPµØÖ·ÁË¡£
Èç¹ûʹÓÃÁË·´Ïò´úÀíÈí¼þ£¬½«http://192.168.1.110:2046/ µÄURL·´Ïò´úÀíΪhttp://www.xxx.com/ µÄURLʱ£¬ÓÃrequest.getRemoteAddr()·½·¨»ñÈ¡ ......
JavaÃæÏò¶ÔÏó±à³Ì-6.3 ·½·¨¸²¸Ç£¨Override£©¼ÙÈçÓÐ100¸öÀ࣬·Ö±ðΪSub1£¬Sub2…Sub100£¬ËüÃǵÄÒ»¸ö¹²Í¬ÐÐΪÊÇд×Ö£¬³ýÁËSub1ÀàÓýÅд×ÖÍ⣬ÆäÓàµÄÀ඼ÓÃÊÖд×Ö¡£¿ÉÒÔ³éÏó³öÒ»¸ö¸¸ÀàBase£¬ËüÓÐÒ»¸ö±íʾд×ֵķ½·¨write()£¬ÄÇôÕâ¸ö·½·¨µ½µ×ÈçºÎʵÏÖÄØ£¿´Ó¾¡¿ÉÄÜÌá¸ß´úÂë¿ÉÖØÓÃÐԵĽǶȿ´£¬write()·½·¨Ó¦¸Ã²ÉÓÃÊÊÓÃÓÚ´ó ......
ÓÃJavaÁ¬½ÓSQL Server2000Êý¾Ý¿âÓжàÖÖ·½·¨£¬ÏÂÃæ½éÉÜÆäÖÐ×î³£ÓõÄÁ½ÖÖ£¨Í¨¹ýJDBCÇý¶¯Á¬½ÓÊý¾Ý¿â£©¡£
1. ͨ¹ýMicrosoftµÄJDBCÇý¶¯Á¬½Ó¡£´ËJDBCÇý¶¯¹²ÓÐÈý¸öÎļþ£¬·Ö±ðÊÇmssqlserver.jar¡¢msutil.jarºÍmsbase.jar£¬¿ÉÒÔµ½Î¢ÈíµÄÍøվȥÏÂÔØ£¨http://www.microsoft.com/downloads/details.aspx?FamilyId=07287B11-0502-461A-B ......