<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[fantasyH的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/fantasyH</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; fantasyH]]></copyright><item><title><![CDATA[数据库笔试题    ]]></title><link>https://blog.youkuaiyun.com/fantasyH/article/details/1914387</link><guid>https://blog.youkuaiyun.com/fantasyH/article/details/1914387</guid><author>fantasyH</author><pubDate>Mon, 03 Dec 2007 20:27:00 +0800</pubDate><description><![CDATA[*建表：dept: deptno(primary key),dname,locemp: empno(primary key),ename,job,mgr,sal,deptno*/1 列出emp表中各部门的部门号，最高工资，最低工资select max(sal) as 最高工资,min(sal) as 最低工资,deptno from emp group by deptno;2 列出emp表]]></description><category></category></item><item><title><![CDATA[LINUX命令大全]]></title><link>https://blog.youkuaiyun.com/fantasyH/article/details/1914111</link><guid>https://blog.youkuaiyun.com/fantasyH/article/details/1914111</guid><author>fantasyH</author><pubDate>Mon, 03 Dec 2007 17:06:00 +0800</pubDate><description><![CDATA[cat用途：cat将文件连接在一起并显示这些文件中的内容。举例：cat myfile.txt。这个命令执行后显示myfile.txt中的内容。cc用途：cc是用于许多系统的C编译器。举例：cc myfile.c -o myfile。这个命令执行后对myfile.c源文件进行编译并输出一个名为myfile的可执行文件。cd用途：cd用来改变当前目录。举例：cd/usr/bin。这个命令执行后将当前目]]></description><category></category></item><item><title><![CDATA[JAVA 基础心得4]]></title><link>https://blog.youkuaiyun.com/fantasyH/article/details/1908661</link><guid>https://blog.youkuaiyun.com/fantasyH/article/details/1908661</guid><author>fantasyH</author><pubDate>Fri, 30 Nov 2007 10:49:00 +0800</pubDate><description><![CDATA[                                    File P1.java            package MyPackage;            class P1{            void afancymethod(){                    System.out.println("What a fancy ]]></description><category></category></item><item><title><![CDATA[类初始化]]></title><link>https://blog.youkuaiyun.com/fantasyH/article/details/1906957</link><guid>https://blog.youkuaiyun.com/fantasyH/article/details/1906957</guid><author>fantasyH</author><pubDate>Thu, 29 Nov 2007 13:07:00 +0800</pubDate><description><![CDATA[    类的初始化大致上有这么几个方面。a．静态变量的初始化 b．一般实例变量的初始化 c．构造函数的初始化   初始化的难点在于继承体系中。当有继承体系时，初始化始终要遵循的原则就是，无论如何必先初始化基类   0．当载入当前类时，若当前类有继承体系，则依次无条件载入基类   0’．先从最顶的基类开始顺序初始化其静态static变量，接着初始化当前类的静态static变量（也]]></description><category></category></item><item><title><![CDATA[子父类问题.JAVA基础]]></title><link>https://blog.youkuaiyun.com/fantasyH/article/details/1905251</link><guid>https://blog.youkuaiyun.com/fantasyH/article/details/1905251</guid><author>fantasyH</author><pubDate>Wed, 28 Nov 2007 09:02:00 +0800</pubDate><description><![CDATA[                                    class Base {                   //   static> void speak() {                   //     System.out.println("Base");                   //     }          ]]></description><category></category></item><item><title><![CDATA[多态性、虚拟方法调用]]></title><link>https://blog.youkuaiyun.com/fantasyH/article/details/1904602</link><guid>https://blog.youkuaiyun.com/fantasyH/article/details/1904602</guid><author>fantasyH</author><pubDate>Tue, 27 Nov 2007 18:38:00 +0800</pubDate><description><![CDATA[                                    Which of the following are legal names for variables.（Mutiple）             1) _int            2) %large            3) $fred            4) Integer   ]]></description><category></category></item><item><title><![CDATA[I=I++]]></title><link>https://blog.youkuaiyun.com/fantasyH/article/details/1904085</link><guid>https://blog.youkuaiyun.com/fantasyH/article/details/1904085</guid><author>fantasyH</author><pubDate>Tue, 27 Nov 2007 13:43:00 +0800</pubDate><description><![CDATA[int i = 0;i＝i＋＋;这个效果如下：int temp = i++;//this : temp = 0; i =1;i = temp;//this: i =0;因此: i=i++; 相当于什么都没有做，在有的IDE里，它会告诉你这个代码是废代码！    下面分别用java 和 c 两种语言来做个测试：　　JAVA:　　public class test　　{　　public s]]></description><category></category></item><item><title><![CDATA[JAVA基础]]></title><link>https://blog.youkuaiyun.com/fantasyH/article/details/1903686</link><guid>https://blog.youkuaiyun.com/fantasyH/article/details/1903686</guid><author>fantasyH</author><pubDate>Tue, 27 Nov 2007 09:38:00 +0800</pubDate><description><![CDATA[ ]]></description><category></category></item><item><title><![CDATA[,JAVA 基础心得]]></title><link>https://blog.youkuaiyun.com/fantasyH/article/details/1903683</link><guid>https://blog.youkuaiyun.com/fantasyH/article/details/1903683</guid><author>fantasyH</author><pubDate>Tue, 27 Nov 2007 09:37:00 +0800</pubDate><description><![CDATA[                                    System.out.println(010);            输出八进制数010的十进制值8                                    注意是数字0开头,不是字母o            16进制以0x或0X开头               ]]></description><category></category></item><item><title><![CDATA[即改变引用指向的对象]]></title><link>https://blog.youkuaiyun.com/fantasyH/article/details/1903661</link><guid>https://blog.youkuaiyun.com/fantasyH/article/details/1903661</guid><author>fantasyH</author><pubDate>Tue, 27 Nov 2007 09:12:00 +0800</pubDate><description><![CDATA[                                     class ValHold{                    public int i = 10;            }            public class ObParm{                    public void amethod(){    ]]></description><category></category></item><item><title><![CDATA[JAVA 基础心得]]></title><link>https://blog.youkuaiyun.com/fantasyH/article/details/1903384</link><guid>https://blog.youkuaiyun.com/fantasyH/article/details/1903384</guid><author>fantasyH</author><pubDate>Mon, 26 Nov 2007 22:01:00 +0800</pubDate><description><![CDATA[float f=1.3; Will not compile because the default type of a number with a floating point component is a double. This would compile with a cast as in float f=(float) 1.3 A class that contains an ]]></description><category></category></item><item><title><![CDATA[Iterator源码剖析]]></title><link>https://blog.youkuaiyun.com/fantasyH/article/details/1902107</link><guid>https://blog.youkuaiyun.com/fantasyH/article/details/1902107</guid><author>fantasyH</author><pubDate>Sun, 25 Nov 2007 23:23:00 +0800</pubDate><description><![CDATA[Iterator源码剖析　　让我们来看看AbstracyList如何创建Iterator。首先AbstractList定义了一个内部类（inner class）：                        private class Itr implements Iterator {...}            　　而iterator()方法的定义是：]]></description><category></category></item><item><title><![CDATA[LOG4J]]></title><link>https://blog.youkuaiyun.com/fantasyH/article/details/1901850</link><guid>https://blog.youkuaiyun.com/fantasyH/article/details/1901850</guid><author>fantasyH</author><pubDate>Sun, 25 Nov 2007 19:43:00 +0800</pubDate><description><![CDATA[ 一、前言：     log4j 是一个开放源码项目，是广泛使用的以Java编写的日志记录包。由于log4j出色的表现，     当时在log4j完成时，log4j开发组织曾建议sun在jdk1.4中用log4j取代jdk1.4 的日志工具类，但当时jdk1.4已接近完成，所以sun拒绝使用log4j，当在java开发中实际使用最多的还是log4j，     人们遗忘了sun的日志工具类。    ]]></description><category></category></item><item><title><![CDATA[ECLIPSE快捷键]]></title><link>https://blog.youkuaiyun.com/fantasyH/article/details/1901848</link><guid>https://blog.youkuaiyun.com/fantasyH/article/details/1901848</guid><author>fantasyH</author><pubDate>Sun, 25 Nov 2007 19:37:00 +0800</pubDate><description><![CDATA[Ctrl+L 定位在某行 (对于程序超过100的人就有福音了)ctrl+1  快速修复Ctrl+M 最大化当前的Edit或View (再按则反之)Ctrl+K 参照选中的Word快速定位到下一个Ctrl+Shift+E 显示管理当前打开的所有的View的管理器(可以选择关闭,激活等操作)Ctrl+J 正向增量查找Ctrl+Shift+J 反向增量查找(和上条相同,只不过是从后往前查)]]></description><category></category></item><item><title><![CDATA[有可以创建文件的也可存入DB里的log4j.properties]]></title><link>https://blog.youkuaiyun.com/fantasyH/article/details/1901846</link><guid>https://blog.youkuaiyun.com/fantasyH/article/details/1901846</guid><author>fantasyH</author><pubDate>Sun, 25 Nov 2007 19:35:00 +0800</pubDate><description><![CDATA[# This is the configuring for logging displayed in the Application Serverlog4j.rootCategory=INFO, stdout,logfile#stdout configurelog4j.appender.stdout=org.apache.log4j.ConsoleAppenderlog4j.appender.]]></description><category></category></item><item><title><![CDATA[要让Imagready成出的表格不变形]]></title><link>https://blog.youkuaiyun.com/fantasyH/article/details/1901845</link><guid>https://blog.youkuaiyun.com/fantasyH/article/details/1901845</guid><author>fantasyH</author><pubDate>Sun, 25 Nov 2007 19:34:00 +0800</pubDate><description><![CDATA[要让Imagready成出的表格不变形,则在要一个TABLE里,不要再莰套一个TABLE,直接用TR,TD来做,不要再生成"新的一个组" ]]></description><category></category></item><item><title><![CDATA[SpringSide2.0心得]]></title><link>https://blog.youkuaiyun.com/fantasyH/article/details/1899795</link><guid>https://blog.youkuaiyun.com/fantasyH/article/details/1899795</guid><author>fantasyH</author><pubDate>Fri, 23 Nov 2007 19:14:00 +0800</pubDate><description><![CDATA[1.），它用于要创建一个体现某些基本行为的类，并为该类声明方法，但不能在该类中实现该类的情况public abstract class MailService {  /**  * 发送SimpleMailMessage的接口.  */ public abstract void send(SimpleMailMessage msg);   抽象类的用]法,,,在子类中实现动作..... /** ]]></description><category></category></item><item><title><![CDATA[心得]]></title><link>https://blog.youkuaiyun.com/fantasyH/article/details/1899793</link><guid>https://blog.youkuaiyun.com/fantasyH/article/details/1899793</guid><author>fantasyH</author><pubDate>Fri, 23 Nov 2007 19:12:00 +0800</pubDate><description><![CDATA[     1.MYSQL的问题,HIBERNATE+SPRING 不可以用....2.struts里action type =delegatingactionProxy没写3.struts里的plugIn 改写在web.xml里这样可以把server action 里的错误信息可以显示出来..4. nullPoint空指针问题一般是没实例化.5.noDefClasserr  没有加载到.jar包6]]></description><category></category></item><item><title><![CDATA[心得4]]></title><link>https://blog.youkuaiyun.com/fantasyH/article/details/1899792</link><guid>https://blog.youkuaiyun.com/fantasyH/article/details/1899792</guid><author>fantasyH</author><pubDate>Fri, 23 Nov 2007 19:09:00 +0800</pubDate><description><![CDATA[用集成环境的时候集成用到包冲突的问题，要小心注意。才知道自己发布的应用当上的版本有冲突，其实就是lucene-core包的问题。我使用的开发环境是spring 1.2和hiberante3.1，可能hiberante当中自己带lucene-core-1.4.3吧2.tionContext("classpath:/applicationContext.xml");3.  在数据库设计里，多对]]></description><category></category></item></channel></rss>