https://blog.youkuaiyun.com/JBuilder3zh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/JBuilder3/article/details/18817557https://blog.youkuaiyun.com/JBuilder3/article/details/18817557JBuilder3Mon, 27 Jan 2014 17:35:56 +0800https://blog.youkuaiyun.com/JBuilder3/article/details/7742884https://blog.youkuaiyun.com/JBuilder3/article/details/7742884JBuilder3Fri, 13 Jul 2012 09:55:32 +0800https://blog.youkuaiyun.com/JBuilder3/article/details/6536750https://blog.youkuaiyun.com/JBuilder3/article/details/6536750JBuilder3Fri, 10 Jun 2011 16:18:00 +0800https://blog.youkuaiyun.com/JBuilder3/article/details/6531292https://blog.youkuaiyun.com/JBuilder3/article/details/6531292JBuilder3Wed, 08 Jun 2011 11:18:00 +0800https://blog.youkuaiyun.com/JBuilder3/article/details/6444202https://blog.youkuaiyun.com/JBuilder3/article/details/6444202JBuilder3Wed, 25 May 2011 10:30:00 +0800https://blog.youkuaiyun.com/JBuilder3/article/details/6417747https://blog.youkuaiyun.com/JBuilder3/article/details/6417747JBuilder3Fri, 13 May 2011 16:44:00 +0800https://blog.youkuaiyun.com/JBuilder3/article/details/6400288https://blog.youkuaiyun.com/JBuilder3/article/details/6400288JBuilder3Fri, 06 May 2011 16:43:00 +0800https://blog.youkuaiyun.com/JBuilder3/article/details/6400177https://blog.youkuaiyun.com/JBuilder3/article/details/6400177JBuilder3Fri, 06 May 2011 16:13:00 +0800https://blog.youkuaiyun.com/JBuilder3/article/details/6399282https://blog.youkuaiyun.com/JBuilder3/article/details/6399282JBuilder3Fri, 06 May 2011 10:58:00 +08001.Java中的基本类型包括byte,boolean,char,short,int,long,float,double，java.lang.String类是final类型，因此不能继承这个类，不能修改这个类。为了提高效率，节省空间，应该使用StringBuffer类
  String与StringBuffer的区别
  在Java中有3个类负责字符的操作
  （1）Character是进行单个字符操作
  （2）String对一串字符进行操作，不可变类（f]]>https://blog.youkuaiyun.com/JBuilder3/article/details/6399279https://blog.youkuaiyun.com/JBuilder3/article/details/6399279JBuilder3Fri, 06 May 2011 10:57:00 +0800https://blog.youkuaiyun.com/JBuilder3/article/details/6395850https://blog.youkuaiyun.com/JBuilder3/article/details/6395850JBuilder3Thu, 05 May 2011 10:19:00 +0800https://blog.youkuaiyun.com/JBuilder3/article/details/6273204https://blog.youkuaiyun.com/JBuilder3/article/details/6273204JBuilder3Thu, 24 Mar 2011 09:38:00 +0800https://blog.youkuaiyun.com/JBuilder3/article/details/5886963https://blog.youkuaiyun.com/JBuilder3/article/details/5886963JBuilder3Wed, 15 Sep 2010 21:32:00 +0800https://blog.youkuaiyun.com/JBuilder3/article/details/5723267https://blog.youkuaiyun.com/JBuilder3/article/details/5723267JBuilder3Fri, 09 Jul 2010 14:25:00 +0800https://blog.youkuaiyun.com/JBuilder3/article/details/5701705https://blog.youkuaiyun.com/JBuilder3/article/details/5701705JBuilder3Tue, 29 Jun 2010 14:04:00 +0800https://blog.youkuaiyun.com/JBuilder3/article/details/5675673https://blog.youkuaiyun.com/JBuilder3/article/details/5675673JBuilder3Thu, 17 Jun 2010 15:33:00 +0800https://blog.youkuaiyun.com/JBuilder3/article/details/5674323https://blog.youkuaiyun.com/JBuilder3/article/details/5674323JBuilder3Wed, 16 Jun 2010 22:31:00 +0800https://blog.youkuaiyun.com/JBuilder3/article/details/5674322https://blog.youkuaiyun.com/JBuilder3/article/details/5674322JBuilder3Wed, 16 Jun 2010 22:31:00 +0800https://blog.youkuaiyun.com/JBuilder3/article/details/5653331https://blog.youkuaiyun.com/JBuilder3/article/details/5653331JBuilder3Mon, 07 Jun 2010 16:29:00 +0800https://blog.youkuaiyun.com/JBuilder3/article/details/5653062https://blog.youkuaiyun.com/JBuilder3/article/details/5653062JBuilder3Mon, 07 Jun 2010 15:06:00 +0800