12.18 java中的view,ibatis dao
Java内部类当初的设计目的应该是实现多重继承,后来发现内部类还带来了其他好处,如可以使用内部类包装一些函数,实现函数级别的权限控制等。
Java中,LIst.subList()等方法产生的是一个view,即不是传值,而仅是引用。似乎在java中除了primitive类,其他类都需new才能产生新对象。
iBatis DAO框架图
相关文档:
create PROCEDURE pagelist
@tablename nvarchar(50),
@fieldname nvarchar(50)='*',
@pagesize int output,--每页显示记录条数
@currentpage int output,--第几页
@orderid nvarchar(50),--主键排序
@sort int,--排序方式,1表示升序,0表示降序排列
......
from Rxtx
This page is for general content regarding the use of rxtx. Feel free to add your own content.
Using RXTX In Eclipse
Deploying JAVA with RXTX
I wrote an app several months ago using javax.comm on windows. Sun has left me high and dry. rxtx help!
download ftp://ftp.qbang.org/pub/rx ......
1. 字符串有整型的相互转换
Java代码
String a = String.valueOf(2); //integer to numeric string
int i = Integer.parseInt(a); //numeric string to an int
2. 向文件末尾添加内容
Java代码
BufferedWriter out = null;
try {
out = new BufferedWriter(new FileWr ......
1.what is oracle.
2.what is major differenece oracle8i and oracle9i.
4.tell me some thing ur self.
5.please tell me about oops.
6.what is single inheritance.
7.what is multiple inheritance.
8.can java support multiple inheritance.
9.what is interface.
10.what is differenec between abstract c ......
Java邮件群发器
功能说明:
1、批量循环发送邮件
2、发送HTML文件,待发送的邮件以htm的格式存放,可以是网络上的htm文件,可以是本地的htm文件
3、可以指定发送附件的目录,系统会加载指定目录的全部附件一起发送
4、发送邮件以txt文件保存,每行保存一个邮件 ......