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 JFrame.setDefaultLookAndFeelDecorated(true);
   JDialog.setDefaultLookAndFeelDecorated(true);
   try {
   UIManager.setLookAndFeel(new org.jvnet.substance.skin.SubstanceModerateLookAndFeel()) ;
  } catch (UnsupportedLookAndFeelException e) {
   e.printStackTrace();
  }  
  FontUIResource f = new FontUIResource("", Font.PLAIN, 14);
  java.util.Enumeration keys = UIManager.getDefaults().keys();
  while (keys.hasMoreElements()) {
   Object key = keys.nextElement();
   Object value = UIManager.get(key);
   if (value instanceof javax.swing.plaf.FontUIResource){
    UIManager.put(key, f);
   }    
  }
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javaʹÓÃrocksawºÍvserv tcpipʵÏÖ»ùÓÚICMPµÄPing¹¦ÄÜ

Ò»£º×¼±¸ www.savarese.org download
 1.  rocksaw-1.0.0-src.tar.gz
 2.  vserv-tcpip-0.9.2-src.tar.gz
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 1.  build vserv-tcpip-0.9.2-src
      ÔÚvserv-tcpip-0.9.2Ŀ¼ÏÂÃæ½¨Ò»¸ötestsĿ¼£¬È»ºóÔÚcmd´°¿ÚϽøÈë ......

UbuntuÏÂJava»·¾³µÄ´î½¨

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sudo apt-get install sun-java6-jdk
Ìáʾ£º°²×°¹ý³ÌÖÐÐèÒªÄã»Ø´ðÊÇ·ñͬÒâʹÓÃЭÒ飨ÖÕ¶ËÖкìÀ¶É«µÄÌáʾ½çÃæ£©£¬´Ëʱ°´tab¼üÖÁOK£¬ÔÙ°´»Ø³µ¼´¿ÉÕý³£°²×°
´ý°²×°Íê±ÏºóÑ¡Ôñ ......

Java 5.0 ·ºÐÍÖ® Java·ºÐÍÊý×é

package Demo;
// Java·ºÐÍÊý×é
public class GenericsDemo30 {
public static void main(String args[]) {
Integer i[] = fun1(1, 2, 3, 4, 5, 6); // ·µ»Ø·ºÐÍÊý×é
fun2(i);
}
public static <T> T[] fun1(T... arg) { // ½ÓÊտɱä²ÎÊý
return arg; // ·µ»Ø·ºÐÍÊý×é
}
public static <T> ......

Java 5.0 ·ºÐÍÖ® Java·ºÐͽӿÚ

package Demo;
// Java·ºÐͽӿÚ
interface Info24<T> { // ÔÚ½Ó¿ÚÉ϶¨Òå·ºÐÍ
public T getVar(); // ¶¨Òå³éÏó·½·¨£¬³éÏó·½·¨µÄ·µ»ØÖµ¾ÍÊÇ·ºÐÍÀàÐÍ
}
class InfoImp24<T> implements Info24<T> { // ¶¨Òå·ºÐͽӿڵÄ×ÓÀà
private T var; // ¶¨ÒåÊôÐÔ
public InfoImp24(T var) { // ͨ¹ý¹¹Ôì·½·¨É ......
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