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
JavaÓïÑÔµÄÊäÈëÊä³ö¹¦ÄÜÊÇÊ®·ÖÇ¿´ó¶øÁé»îµÄ£¬ÃÀÖв»×ãµÄÊÇ¿´ÉÏÈ¥ÊäÈëÊä³öµÄ´úÂë²¢²»ÊǺܼò½à£¬ÒòΪÄãÍùÍùÐèÒª°ü×°Ðí¶à²»Í¬µÄ¶ÔÏó¡£ÔÚJavaÀà¿âÖУ¬IO²¿·ÖµÄÄÚÈÝÊǺÜÅÓ´óµÄ£¬ÒòΪËüÉæ¼°µÄÁìÓòºÜ¹ã·º:±ê×¼ÊäÈëÊä³ö£¬ÎļþµÄ²Ù×÷£¬ÍøÂçÉϵÄÊý¾ÝÁ÷£¬×Ö·û´®Á÷£¬¶ÔÏóÁ÷£¬zipÎļþÁ÷....±¾ÎĵÄÄ¿µÄÊÇΪ´ó¼Ò×öÒ»¸ö¼òÒªµÄ½éÉÜ¡£ Á÷ÊÇÒ»¸ ......
1¡¢Âß¼ÔËËã·û == £¬ÔÚjavaÖÐÔËËã·û == ÊÇÓÃ×÷¶Ô±ÈÁ½¸ö¶ÔÏóµÄ±êʶÊÇ·ñÒ»Ñù£¬»òÕß¶ÔÓÚ»ù±¾ÀàÐͶøÑÔÊý¾ÝÖµÊÇ·ñÏàµÈ¡£»ù±¾ÀàÐͺͶÔÏóÊý¾ÝÖ®¼äÊDz»¿ÉÒÔÓÃÖ±½ÓÒâÒåÉϵıȽϣ¬javaÖвÉÓõÄÊǽ«¶ÔÏóÀàÐͲðÏ䣬¶øÔÚgroovyÖУ¬ÓÉÓÚ×Ô¶¯×°ÏäµÄ¹¦ÄÜ£¬Ò»Çж¼ÊǶÔÏó¡£ÒªÊ¹µÃ == ±È½ÏÓÐͨÓÃÐÔµÄÒâÒ壬groovyͨ¹ýequals()À´ÖØÔØ == Ô¤Ëã·û¡ ......
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 ......
JAVAÖÐÓÃÓÚ´¦Àí×Ö·û´®µÄ“ÈýÐֵܔ
JAVAÖÐÓÃÓÚ´¦Àí×Ö·û´®³£ÓõÄÓÐÈý¸öÀࣺjava.lang.String¡¢java.lang.StringBuffer¡¢java.lang.StringBuilder£¬ÕâÈýÕߵĹ²Í¬Ö®´¦¶¼ÊÇfinalÀ࣬²»ÔÊÐí±»¼Ì³Ð£¬ÕâÖ÷ÒªÊÇ´ÓÐÔÄܺͰ²È«ÐÔÉÏ¿¼Âǵģ¬ÒòΪÕ⼸¸öÀà¶¼ÊǾ³£±»Ê¹ÓÃ×ŵģ¬ÇÒ¿¼Âǵ½·ÀÖ¹ÆäÖеIJÎÊý±»ÐÞ¸ÄÓ°Ïìµ½ÆäËüµÄÓ¦Óᣠ......
×òÌìÔÚдÍêjavaÏÂÔØµÄÎÄÕºó¾ÍÔÚ½ñÌì·¢ÏÖÁËÒ»¸öÎÊÌ⡣ͨ¹ýÕâ¸öÎÊÌâÒ²·´Ó¦³ö¶ÔHttpURLConnectionÕâ¸öÀ໹²»Á˽⡣³Ã´Ë»ú»áÔÙÌí¼ÓһЩ¶ÔÕâ¸öÀàµÄÁ˽â°É¡£Ê×ÏÈ¿´¿´Ç°ÃæÄǶϴúÂëÔÚÎҵijÌÐòÖгöÏÖÁËʲôÎÊÌ⣺
ÔÚÎҵijÌÐòÖ ......