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

³ÉΪJava¸ßÊÖÐèҪעÒâµÄ25¸öѧϰĿ±ê

1.ÄãÐèÒª¾«Í¨ÃæÏò¶ÔÏó·ÖÎöÓëÉè¼Æ(OOA/OOD)¡¢É漰ģʽ(GOF£¬J2EEDP)ÒÔ¼°×ÛºÏģʽ¡£ÄãÓ¦¸ÃÁ˽âUML£¬ÓÈÆäÊÇclass£¬object£¬interactionÒÔ¼°statediagrams¡£
2.ÄãÐèҪѧϰJavaÓïÑԵĻù´¡ÖªÊ¶ÒÔ¼°ËüµÄºËÐÄÀà¿â(collections£¬serialization£¬streams£¬networking£¬?multithreading£¬reflection£¬event£¬handling£¬NIO£¬localization£¬ÒÔ¼°ÆäËû)¡£
3.ÄãÓ¦¸ÃÁ˽âJVM£¬classloaders£¬classreflect£¬ÒÔ¼°À¬»ø»ØÊյĻù±¾¹¤×÷»úÖÆµÈ¡£ÄãÓ¦¸ÃÓÐÄÜÁ¦·´±àÒëÒ»¸öÀàÎļþ²¢ÇÒÃ÷°×һЩ»ù±¾µÄ»ã±àÖ¸Áî¡£
4.Èç¹ûÄ㽫Ҫд¿Í»§¶Ë³ÌÐò£¬ÄãÐèҪѧϰWebµÄСӦÓóÌÐò(applet)£¬±ØÐèÕÆÎÕGUIÉè¼ÆµÄ˼ÏëºÍ·½·¨£¬ÒÔ¼°×ÀÃæ³ÌÐòµÄSWING£¬AWT£¬SWT¡£Ä㻹Ӧ¸Ã¶ÔUI²¿¼þµÄJavaBEAN×é¼þģʽÓÐËùÁ˽⡣JavaBEANSÒ²±»Ó¦ÓÃÔÚJSPÖÐÒÔ°ÑÒµÎñÂß¼­´Ó±íÏÖ²ãÖзÖÀë³öÀ´¡£
5.ÄãÐèҪѧϰJavaÊý¾Ý¿â¼¼Êõ£¬²¢ÇÒ»áʹÓÃÖÁÉÙÒ»ÖÖpersistence/ORM¹¹¼Ü£¬ÀýÈçHibernate£¬JDO£¬?CocoBase£¬TopLink£¬InsideLiberator(¹ú²úJDOºì¹¤³§Èí¼þ)»òÕßiBatis¡£
6.Ä㻹Ӧ¸ÃÁ˽â¶ÔÏó¹ØÏµµÄ×迹ʧÅäµÄº¬Ò壬ÒÔ¼°ËüÊÇÈçºÎÓ°ÏìÒµÎñ¶ÔÏóµÄÓë¹ØÏµÐÍÊý¾Ý¿âµÄ½»»¥£¬ºÍËüµÄÔËÐнá¹û£¬»¹ÐèÒªÕÆÎÕ²»Í¬µÄÊý¾Ý¿â²úÆ·ÔËÓ㬱ÈÈçracle£¬mysql£¬mssqlserver¡£
7.ÄãÐèҪѧϰServlets£¬JSP£¬ÒÔ¼°JSTL(StandardTagLibraries)ºÍ¿ÉÒÔÑ¡ÔñµÄµÚÈý·½TagLibraries¡£
8.ÄãÐèÒªÊìϤÖ÷Á÷µÄÍøÒ³¿ò¼Ü£¬ÀýÈçJSF£¬Struts£¬Tapestry£¬Cocoon£¬WebWork£¬ÒÔ¼°ËûÃÇÏÂÃæµÄÉæ¼°Ä£Ê½£¬ÈçMVC/MODEL2¡£
9.ÄãÐèҪѧϰÈçºÎʹÓü°¹ÜÀíWeb·þÎñÆ÷£¬ÀýÈçtomcat£¬resin£¬Jrun£¬²¢ÇÒÖªµÀÈçºÎÔÚÆä»ù´¡ÉÏÀ©Õ¹ºÍά»¤Web³ÌÐò¡£
10.ÄãÐèҪѧϰ·Ö²¼Ê½¶ÔÏóÒÔ¼°Ô¶³ÌAPI£¬ÀýÈçRMIºÍRMI/IIOP¡£
11.ÄãÐèÒªÕÆÎÕ¸÷ÖÖÁ÷ÐÐÖмä¼þ¼¼Êõ±ê×¼ºÍÓëJava½áºÏʵÏÖ£¬±ÈÈçTuxedo¡¢CROBA£¬µ±È»Ò²°üÀ¨JavaEE±¾Éí¡£
12.ÄãÐèҪѧϰ×îÉÙÒ»ÖÖµÄXMLAPI£¬ÀýÈçJAXP(JavaAPIforXMLProcessing)£¬JDOM(JavaforXMLDocumentObjectModel)£¬DOM4J£¬»òJAXR(JavaAPIforXMLRegistries)¡£
13.ÄãÓ¦¸ÃѧϰÈçºÎÀûÓÃJavaµÄAPIºÍ¹¤¾ßÀ´¹¹½¨WebService¡£ÀýÈçJAX-RPC(JavaAPIforXML/RPC)£¬SAAJ?(SOAPwithAttachmentsAPIforJava)£¬JAXB(JavaArchitectureforXMLBinding)£¬JAXM(JavaAPIforXMLMessaging)£¬?JAXR(JavaAPIforXMLRegistries)£¬»òÕßJWSDP(JavaWebServicesDeveloperPack)¡£
14.ÄãÐèҪѧϰһÃÅÇáÁ¿¼¶Ó¦ÓóÌÐò¿ò¼Ü£¬ÀýÈçSpring£¬PicoContainer£¬Avalon£¬ÒÔ¼°ËüÃǵÄIoC/DI·ç¸ñ(setter£¬constructor£¬int


Ïà¹ØÎĵµ£º

javaÄÚ²¿ÀàºÍÄäÃûÀà

ÌáÆðJavaÄÚ²¿ÀࣨInner Class£©¿ÉÄܺܶàÈ˲»Ì«ÊìϤ£¬Êµ¼ÊÉÏÀàËÆµÄ¸ÅÄîÔÚC++ÀïÒ²ÓУ¬ÄǾÍÊÇǶÌ×ÀࣨNested Class£©£¬¹ØÓÚÕâÁ½ÕßµÄÇø±ðÓëÁªÏµ£¬ÔÚÏÂÎÄÖлáÓжԱȡ£ÄÚ²¿Àà´Ó±íÃæÉÏ¿´£¬¾ÍÊÇÔÚÀàÖÐÓÖ¶¨ÒåÁËÒ»¸öÀࣨÏÂÎĻῴµ½£¬ÄÚ²¿Àà¿ÉÒÔÔÚºÜ¶àµØ·½¶¨Ò壩£¬¶øÊµ¼ÊÉϲ¢Ã»ÓÐÄÇô¼òµ¥£¬Õ§¿´ÉÏÈ¥ÄÚ²¿ÀàËÆºõÓÐЩ¶àÓ࣬ËüµÄÓô¦¶ÔÓÚ³õ ......

java »ù´¡ÖªÊ¶µã»ã×Ü

ÎÊÌâÒ»£ºÎÒÉùÃ÷ÁËʲô£¡
String s = "Hello world!";
Ðí¶àÈ˶¼×ö¹ýÕâÑùµÄÊÂÇ飬µ«ÊÇ£¬ÎÒÃǵ½µ×ÉùÃ÷ÁËʲô£¿»Ø´ðͨ³£ÊÇ£ºÒ»¸öString£¬ÄÚÈÝÊÇ“Hello world!”¡£ÕâÑùÄ£ºýµÄ»Ø´ðͨ³£ÊǸÅÄî²»ÇåµÄ¸ùÔ´¡£Èç¹ûҪ׼ȷµÄ»Ø´ð£¬Ò»°ëµÄÈË´ó¸Å»á»Ø´ð´íÎó¡£
Õâ
¸öÓï¾äÉùÃ÷µÄÊÇÒ»¸öÖ¸Ïò¶ÔÏóµÄÒýÓã¬ÃûΪ“s ......

JavaÖ®¸¸÷öÈ»ÀëÖ° ¿ªÔ´½«ºÎÈ¥ºÎ´Ó

Java´´Ê¼ÈËղķ˹·¸ß˹ÁÖ(James Gosling)ÈÕǰÔÚ²©¿ÍÖгÆ,ÒѾ­ÔÚ4ÔÂ2ÈÕ´Ó¼×¹ÇÎÄ(Oracle£©ÍËÐÝ¡£ºÜ¶àÈ˵ĵÚÒ»·´Ó¦ÊÇ£¬ËûÊÇ·ñ»áͶ±¼Î¢Èí¡¢GoogleÖ®ÀàµÄ¹«Ë¾ÄØ£¿²»¹ýGosling±íʾĿǰ»¹Ã»ÓнøÒ»²½´òËã¡£ 
¹ØÓÚÀëÖ°µÄ¾ßÌåÔ­Òò£¬¸ß˹ÁÖûÓÐ͸¶¡£Ö»ÊÇÔÚ²©¿ÍÖÐдµÀ£º“Êǵģ¬ÄÇЩ´«ÑÔ¶¼ÊÇÕæµÄ£ºÎÒÒѾ­ÔÚÒ»ÖÜǰ£¨4 ......

java ÏÂÔØÎļþµÄ·½·¨(2)

         ×òÌìÔÚдÍêjavaÏÂÔØµÄÎÄÕºó¾ÍÔÚ½ñÌì·¢ÏÖÁËÒ»¸öÎÊÌ⡣ͨ¹ýÕâ¸öÎÊÌâÒ²·´Ó¦³ö¶ÔHttpURLConnectionÕâ¸öÀ໹²»Á˽⡣³Ã´Ë»ú»áÔÙÌí¼ÓһЩ¶ÔÕâ¸öÀàµÄÁ˽â°É¡£Ê×ÏÈ¿´¿´Ç°ÃæÄǶϴúÂëÔÚÎҵijÌÐòÖгöÏÖÁËʲôÎÊÌ⣺
         ÔÚÎҵijÌÐòÖ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ