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原创 iostream 一
#include // 是不是太重量级了?class Date{ public: Date(int year, int month, int day) : year_(year), month_(month), day_(day) { } void writeTo(std::ostream& os) const { os << year_ << '
2013-03-27 22:15:49
380
原创 Pointers to Function
Function typeA function type is determined by its return value and parameter listPointers to functiona pointer to funtion is a pointer points to a object of particular function typebo
2013-03-27 21:13:35
469
原创 Java 中的比较 equals() hashcode() comparable
http://tutorials.jenkov.com/java-collections/hashcode-equals.htmlclass Customer{ private long id; private String Firstname; private String Lastname; public Customer(long id,String Firs
2013-03-19 22:31:18
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原创 Problem4
Problem Setting:A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 99.Find the largest palindrome made from the produ
2013-03-17 12:56:25
425
原创 Const in C++
Why const?Take a look at this snippet of codes for(int i;i<512;i++){ cout<<i<<endl; }There is a problem with it. It is not evident diret from the codes what does the magic number 512 means. In ad
2013-03-14 12:45:59
442
原创 Java Reflection- Annotations
What is Annotation?Annotations is a new feature from Java 5. Annotations are a kind of comment or meta data you can insert in your Java code. These annotations can then be processed at 1 compile
2013-03-13 21:41:34
485
原创 Java Reflection-classes
Java Reflectionhttp://tutorials.jenkov.com/java-reflection/classes.htmlWhy and where Reflectioin?Reflection allows a program to work with code that may not be present and do so in a re
2013-03-12 20:37:29
502
原创 Problem3
Problem Setting:The prime factors of 13195 are 5, 7, 13 and 29.What is the largest prime factor of the number 600851475143 ?My thinking:Step 1 How to check factor of one number ? mode o
2013-03-12 18:27:30
518
原创 创建对象的几种方式
1 Serialization & anti-Serializationpackage Execise;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.io.ObjectInputStream;import java.io.Ob
2013-03-11 19:23:43
407
原创 Variable
VariableWhat is variable? (idiom: define variable where they are used)Name for Object that is a region of memory with certain type.By the time of compilation variable names are converted i
2013-03-10 14:42:35
778
原创 语音和语言处理大师——Fred Jelinek(转载)
转载于Heart.X.Raid,http://hxraid.iteye.com/blog/676235转载于Heart.X.Raid,http://hxraid.iteye.com/blog/676235转载于Heart.X.Raid,http://hxraid.iteye.com/blog/676235作者题记: 没有你,我永远也不可能知道语言还能被机器处理。 ...
2011-03-21 21:41:07
328
原创 String(转载)
转载于Heart.X.Raid,http://hxraid.iteye.com/blog/676235转载于Heart.X.Raid,http://hxraid.iteye.com/blog/676235转载于Heart.X.Raid,http://hxraid.iteye.com/blog/676235作者:每次上网冲杯Java时,都能看到关于String无休无止的争论。还是觉得有必...
2011-03-21 21:17:36
154
原创 J2SE 四大技术体系(转载)
转载于Heart.X.Raid,http://hxraid.iteye.com/blog/676235转载于Heart.X.Raid,http://hxraid.iteye.com/blog/676235转载于Heart.X.Raid,http://hxraid.iteye.com/blog/676235 讲到Java,很容易就想到程序设计语言。实际上,Java技术包含的内容远不止...
2011-03-21 21:12:29
129
原创 Class文件内容及常量池(转载)
转载于Heart.X.Raid,http://hxraid.iteye.com/blog/676235转载于Heart.X.Raid,http://hxraid.iteye.com/blog/676235转载于Heart.X.Raid,http://hxraid.iteye.com/blog/676235 当JVM运行Java程序的时候,它会加载对应的class文...
2011-03-21 21:04:47
167
原创 Java 虚拟机体系结构(转载)
转载于Heart.X.Raid,http://hxraid.iteye.com/blog/676235转载于Heart.X.Raid,http://hxraid.iteye.com/blog/676235转载于Heart.X.Raid,http://hxraid.iteye.com/blog/676235众所周知,Java源代码被编译器编译成class文件。而并不是底层操作系统可以直接...
2011-03-21 20:29:32
140
原创 I/O输入流的结构
Java的输入输出流在io和nio这两个不同的包下面 file类,如果说在java中file不单单是指文件,同时也只目录,这种说法是正确的,但并不准确。file指的其实是文件系统的路径(例如:D:\TDDOWNLOAD和D:\TDDOWNLOAD\TestDaf词汇或者D:\TDDOWNLOAD\TestDaf词汇\TestDaf词汇 下文件夹a)这种文件系统的结构是一种树形的数据结构,...
2011-03-19 15:58:55
117
原创 Design Pattern
了解简单工厂模式(Static Factory Method/Factory Pattern) 简单工厂模式是类的创建模式,由一个工厂类根据传入的参数动态制造出产品对象。把创建对象的责任从自己转移到了工厂上。 模式角色(类比):1 工厂类角色(PC加工厂) 2 抽象产品角色(PC) 3 具体产品角色(Dell PC) ...
2011-02-18 10:48:15
118
原创 XML语法
概述XML(eXtensible markup Language),DTD(文档类型定义) XML是一种元标记语言 XML描述的是内容结构和内容语义,而不是格式(HTML);拆分了内容和显示(HTML是内容与显示相结合的) XML是一种树形结构的面向对象编程,我们可以去解析这个树中我们需要的元素来获取信息。 总而言之,XML是棵树,DTD是对XML的规范 ...
2011-02-16 22:00:12
138
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