dashe0197-优快云博客

转载 Hypertext Transfer Protocol

Network PerformanceLatency(Propagation time; Transmission time)Data Transfer Rate(Bandwidth)Retransmission(Dropped packets)Under Light TrafficMessage Length Message Transmission Time = ...

2019-04-14 00:38:00 610

转载 Internet protocol (IP)

Internet protocol (IP) version 4 is the predominant protocol used at the network layer of the Internet and most other distributed systems. It is responsible for the routing of packets from the so...

2019-04-13 23:25:00 429

转载 Principles of Distributed Systems

Distributed SystemsA distributed system is a computer system with multiple sequential processes that communicate and interact with each other that appears to users as a single coherent system. ...

2019-04-13 16:38:00 471

转载图论

1）图的基本概念2）路与回路3）图的矩阵表示（不考）4）欧拉图与汉密尔顿图5）平面图6）对偶图与着色7）树与生成树转载于:https://www.cnblogs.com/hahaccy/p/8097498.html...

2017-12-24 10:33:00 186

转载集合论（集合与关系）

1）集合的概念和表达法2）集合的运算3）包含排斥原理4）序偶与笛卡儿积5）关系及其表示6）关系的性质7）复合关系和逆关系8）关系闭包运算9）集合的划分和覆盖10）等价关系与等价类11）相容关系12）序关系转载于:https://www.cnblogs.com/hahaccy/p/8097491.html...

2017-12-24 10:30:00 770

转载数理逻辑——谓词逻辑

1）谓词的概念与表达2）命题函数与量词3）谓词公式与翻译4）变元的约束5）谓词演算的等价式与蕴含式6）前束范式7）谓词演算的推理理论转载于:https://www.cnblogs.com/hahaccy/p/8097479.html...

2017-12-24 10:26:00 297

因为之前没有任何的接触过AI，所以引用很多文章，链接如下：http://blog.youkuaiyun.com/zhongkejingwang/article/details/44514073https://www.cnblogs.com/daniel-D/archive/2013/06/03/3116278.htmlhttp://blog.youkuaiyun.com/fernchen/art...

2017-12-23 21:59:00 146

转载 Design Patterns

Where is the cost of software products from?-Effort and timeAbstraction　　Abstractionis a process by whichhigherconcepts are derived from the usage and classification of "real" or "concre...

2017-12-19 01:00:00 187

转载 Verification(验证)

Faults and failuresMistake vs. Fault vs. Failure　　Mistake:A human action that produces an incorrect result 　　Fault: An incorrect step, process or data definition in a computer program　　Fa...

2017-12-19 00:25:00 805

转载 Reflection

Reflection:　　To obtain meta level information about the program structure itself at runtime.　　To change the program interpretation or meaning at the runtimeWhat is meta level information?...

2017-12-18 22:03:00 125

转载 Unit Test & JUnit(Java)

unit tests def　　High-level testing vs. low-level testing: High-level: system function testing, acceptance testing, … Low-level: unit testing and integration testing Components must be tested in...

2017-12-18 20:59:00 236

转载 Collections

Collection classes 　Types of collection　　　-Collection　　　-Map　ArrayList　HashMap　IteratorJava Arrays　　Declaring an array int[] myArray; 　　int[] myArray = new int[5];　　String[] s...

2017-12-18 18:54:00 153

转载多态性(Polymorphism)

Polymorphism　　Polymorphism: Means many (poly) shapes (morph)　　In OO programming, it means the ability of an object to take on many forms　　It is an important feature of OO language　　The mo...

2017-12-18 16:56:00 188

转载 Exceptions in Java（异常）

Errors　　An Error is any unexpected result obtained from a program during execution.　　Unhandled errors may manifest themselves as incorrect results or behavior, or as abnormal program terminat...

2017-12-18 12:29:00 184

转载 Graphical User Interface(GUI)

AWT and SwingAbstract Window Toolkit (AWT): 　　Introduced in Java 1.0 Provides classes and other tools for building programs that have a graphical user interface　　The term “Abstract” refers ...

2017-12-18 00:24:00 557

转载多线程（Multi-Threading）

Creating threads in JavaTwo things to do to create threads in java:　　(1) Create a task (object)　　//Creating a task　　public class TaskClass implements Runnable {　　　　public TaskClass() { ...

2017-12-16 23:12:00 368

转载 Java DataBase(JDBC)

A brief review of DatabaseDatabase (DB):　　an organised collection of data　　Relational DBs (first published by Edgar F. Codd (IBM) in 1970) store data in:　　tables A table in a database con...

2017-12-16 22:03:00 487

转载 Java file I/O(java 文件输入输出)

File OverviewI/O = Input/Output, here it is input to and output from programs　　Inputs can be from: Keyboard Files Etc.　　Output can be: Screen Files Etc.Advantages of file I/O-permanent ...

2017-12-16 16:48:00 190

转载面向对象程序设计（Object Oriented Design）

OOD的流程：需求分析——>系统/程序设计——>实现这个设计——>测试Class Design　　1. Identify classes for the system.　　2. Describe attributes and methods in each class.　　3. Establ...

2017-12-15 19:31:00 399

转载 Modern Programming Languages

Programming languages　　1)Structured programming SQL　　2)Procedural programming c　　3)OO programming c++ javaProcedural Programming vs OO programing　　我自己的感觉，面向过程编程实现小功能是可以的，但是要实现一个很大的工程是比...

2017-12-14 21:40:00 189

转载实现斐波纳契数列（Fibonacci Numbers）的算法比较

斐波纳契数列（Fibonacci Numbers）：　　一.利用循环迭代的方式来完成FIB，但是这样的算法时间复杂度太高了。二.利用数组的方式进行，将值存入数组中，这样不必再次计算之前的值，对于一而言有一丢丢的改进。三.下面的算法，并不是很理解它们的意义，为什么可以使用矩阵的运算来实现（待思考） ...

2017-12-08 16:00:00 138

转载网络流（Flow Networks）

一.基本术语 Basic Terminology　　A source node in a directed graph is a node with no incoming edges. 入度为0　　A sink node in a directed graph is a node with no outgoingedges. 出度为0　　A flow network is...

2017-12-08 00:10:00 707

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