Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Sun Java moved to the Partner repository

For Ubuntu 10.04 LTS, the sun-java6 packages have been dropped from the Multiverse section of the Ubuntu archive. It is recommended that you use openjdk-6 instead.
If you can not switch from the proprietary Sun JDK/JRE to OpenJDK, you can install sun-java6 packages from the Canonical Partner Repository. You can configure your system to use this repository via command-line:
add-apt-repository "deb http://archive.canonical.com/ lucid partner"


Ïà¹ØÎĵµ£º

JAVA System.getProperty()²ÎÊý


Java´úÂë < type="application/x-shockwave-flash" width="14" height="15" src="http://xiaoxinshome.javaeye.com/javascripts/syntaxhighlighter/clipboard_new.swf" pluginspage="http://www.macromedia.com/go/getflashplayer" allowscriptaccess="always" quality="high" flashvars="clipboard=%20%20%20%20%20 ......

Java SWT ´°¿Ú¾ÓÖÐ¶ÔÆë

public static void CentreWnd(Shell shell){
int width = shell.getMonitor().getClientArea().width;
int height = shell.getMonitor().getClientArea().height;
int x = shell.getSize().x;
int y = shell.getSize().y;
if (x > width) {
shell.getSize().x = width;
}
if (y > height) ......

JavaÄÚ´æ¹ÜÀí»úÖÆÓëGC

 
JavaÊÇÈçºÎ¹ÜÀíÄÚ´æ
ΪÁËÅжÏJavaÖÐÊÇ·ñÓÐÄÚ´æÐ¹Â¶£¬ÎÒÃÇÊ×ÏȱØÐëÁ˽âJavaÊÇÈçºÎ¹ÜÀíÄÚ´æµÄ¡£JavaµÄÄÚ´æ¹ÜÀí¾ÍÊǶÔÏóµÄ·ÖÅäºÍÊÍ·ÅÎÊÌâ¡£ÔÚJavaÖУ¬³ÌÐòÔ±ÐèҪͨ¹ý¹Ø¼ü×ÖnewΪÿ¸ö¶ÔÏóÉêÇëÄÚ´æ¿Õ¼ä (»ù±¾ÀàÐͳýÍâ)£¬ËùÓеĶÔÏó¶¼ÔÚ¶Ñ (Heap)ÖзÖÅä¿Õ¼ä¡£ÁíÍ⣬¶ÔÏóµÄÊÍ·ÅÊÇÓÉGC¾ö¶¨ºÍÖ´Ðеġ£ÔÚJavaÖУ¬ÄÚ´æµÄ·ÖÅäÊ ......

¸ßЧÂÊjava±à³Ì

1:¿¼ÂÇʹÓþ²Ì¬¹¤³§·½·¨´úÌæ¹¹¹¹·½·¨À´ÊµÀý»¯Àà¡£
2£ºÊ¹ÓÃ˽Óù¹¹¹º¯Êý£¬Ê¹Àà¾ßÓв»¿ÉʵÀý»¯µÄÄÜÁ¦¡£
3£º±ÜÃâ´´½¨Öظ´µÄ¶ÔÏó
4£ºÏû³ý¹ýÆÚµÄ¶ÔÏóµÄʹÓÃ
5£º±ÜÃâʹÓÃÖսắÊý
6£ºÊ¹ÀàºÍ³ÉÔ±µÄ¿É·ÃÎÊÐÔ×îС
7£º½Ó¿ÚÓÅÏÈÓÚ³éÏó
8£ºÎªËùÓеIJÎÊý½øÐÐÓÐЧÐÔ¼ì²é
9£º½÷É÷ʹÓÃÖØÔØ
10£ºÊ¹ÓÃ0³¤¶ÈµÄÊý×飬¶ø²»ÊÇ¿Õ
11£º½«¾ ......

javaÄÚ´æ»ØÊÕ»úÖÆ

ÒýÑÔ
JavaµÄ¶ÑÊÇÒ»¸öÔËÐÐʱÊý¾ÝÇø,ÀàµÄʵÀý(¶ÔÏó)´ÓÖзÖÅä¿Õ¼ä¡£JavaÐéÄâ»ú(JVM)µÄ¶ÑÖд¢´æ×ÅÕýÔÚÔËÐеÄÓ¦ÓóÌÐòËù½¨Á¢µÄËùÓжÔÏó£¬ÕâЩ¶ÔÏóͨ¹ýnew¡¢newarray¡¢anewarrayºÍmultianewarrayµÈÖ¸ÁÁ¢£¬µ«ÊÇËüÃDz»ÐèÒª³ÌÐò´úÂëÀ´ÏÔʽµØÊÍ·Å¡£Ò»°ãÀ´Ëµ£¬¶ÑµÄÊÇÓÉÀ¬»ø»ØÊÕ À´¸ºÔðµÄ£¬¾¡¹ÜJVM¹æ·¶²¢²»ÒªÇóÌØÊâµÄÀ¬»ø»ØÊÕ¼¼Êõ£ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ