This chapter concerns creating and destorying objects : when and how to create them, when and how to avoid creating them, how to ensure they are destoryed in a timely manner, how to manage any cleanup actions that must precede their destruction.…

Consider static factpry methods instead of construction 四个优点两个缺点 One advantage of static factory methods is that,unlike constructors,they have names. A second advantage of static factory methods is that,unlike constructors,they are not required to cr…

Item 1: Consider static factory methods instead of constructors Advantage: One advantage of static factory methods is that, unlike constructors, they have names. A second advantage of static factory methods is that, unlike constructors, they are not…

C# 生成DBF,无需注册Microsoft.Jet.OLEDB. namespace ConsoleApplication { class Program { static void Main(string[] args) { Test(); Console.ReadKey(); } private static void Test() { string testPath = AppDomain.CurrentDomain.BaseDirectory; )); odbf.Open(Path.C…

<Effective Java, Third Edition>一书英文版已经出版,这本书的第二版想必很多人都读过,号称Java四大名著之一,不过第二版2009年出版,到现在已经将近8年的时间,但随着Java 6,7,8,甚至9的发布,Java语言发生了深刻的变化. 读书笔记 第1章 介绍 (Introduction) 第2章 创建和销毁对象(Creating and Destroying Objects) 第1条 考虑用静态工厂方式替代构造器(Consider static factory m…

<Effective Java>目录摘抄. 我知道这看起来很糟糕.当下,自己缺少实际操作,只能暂时摘抄下目录.随着,实践的增多,慢慢填充更多的示例. Chapter 2 Creating and Destroying Objects Consider static factory methods instead of constructors Consider a builder when faced with many constructor parameters Enforce the s…

Java写了很多年,很惭愧,直到最近才读了这本经典之作<Effective Java>,按自己的理解总结下,有些可能还不够深刻 一.Creating and Destroying Objects Consider static factory methods instead of constructors (factory方法可以拥有名称,可以避免重复创建,比如单例模式) Consider a builder when faced with many constructor parameter…

目录 5 SWIG 基础知识 5.1 运行 SWIG 5.1.1 输入格式 5.1.2 SWIG 输出 5.1.3 注释 5.1.4 C 预处理器 5.1.5 SWIG 指令 5.1.6 解析限制 5.2 包装简单的 C 声明 5.2.1 处理基本类型 5.2.2 全局变量 5.2.3 常量 5.2.4 一点关于 const 的文字 5.2.5 char * 的注意事项 5.3 指针与复杂对象 5.3.1 简单指针 5.3.2 运行时指针类型检查 5.3.3 派生类型.结构体和类 5.3.4 未…

Chapter 2 Creating and Destroying Objects item 1:Consider static factory methods instead of constructors 一个static factory method只不过是一个返回这个类的实例的static方法.与设计模式中的factory method是不同的概念.static factory methods有几点好处: 一.它们可以有自己的名字,而不像constructor只能与类名相同.一个好的名字…

FastDBF源代码地址:https://github.com/SocialExplorer/FastDBF 第一步在解决方案中新建一个类库的项目:取名为SocialExplorer.FastDBF 第二步:引入FASTDBF的源文件  源代码可以通过github地址下载引入 源文件:DbfColumn.cs /// /// Author: Ahmed Lacevic /// Date: 12/1/2007 /// /// Revision History: /// --------------…

本文参考 本篇文章参考自<Effective Java>第三版第一条"Consider static factory methods instead of constructors" 另外参考了其它几篇文章的解读: https://www.cnblogs.com/dyj-blog/p/8867028.html https://blog.csdn.net/u014129886/article/details/89670049 前言 第一条的篇章来自"Creating…

JavaScript is all about objects. Objects are the foundation of everything, so if you’re unfamiliar with objects, you’re going to learn quickly. The goal of this book is not to be a JavaScript or DOM code reference, but in order to make sure you under…

Creating a Game with CocosBuilder This tutorial aims to show how you can use CocosBuilder together with cocos2d-iphone to create character animations, game maps and interfaces. CocosBuilder has been used by Zynga to produce games such asDream PetHous…

Creating Custom Layouts 创建自定义布局 Before you start building custom layouts, consider whether doing so is really necessary. The UICollectionViewFlowLayout class provides a significant amount of behavior that has already been optimized for efficiency and…

http://www.javaworld.com/article/2979739/learn-java/java-101-classes-and-objects-in-java.html?page=3 class Book { // ... static int count; } This example declares a count integer field that stores the number of Book objects created. The declaration b…

Users Objects and Groups Creating local user objects. Creating local user groups. https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-admin/user-id/user-id-overview.html Add local users Add local groups. Add User Group-based Internet accessible Secur…

We were unable to locate this content in zh-cn. Here is the same content in en-us. .NET The CLR's Thread Pool Jeffrey Richter   Contents The Birth of the Thread Pool Capability 1: Calling a Method Asynchronously Capability 2: Calling a Method at Time…

Hi guys, I am happy to tell you that I am moving to the open source world. And Java is the 1st language I have chosen for this migration. It's a nice chance to read some great books like "Effective Java 2nd Edition" and share the note for what I…

https://developer.apple.com/library/content/documentation/GraphicsImaging/Conceptual/CoreImaging/ci_tasks/ci_tasks.html#//apple_ref/doc/uid/TP30001185-CH3-TPXREF101 Processing images means applying filters-an image filter is a piece of software that…

http://www.onjava.com/pub/a/onjava/2001/05/30/optimization.htmlComparing the performance of LinkedLists and ArrayLists (and Vectors) (Page last updated May 2001, Added 2001-06-18, Author Jack Shirazi, Publisher OnJava). Tips: ArrayList is faster than…

Understanding Weak References Posted by enicholas on May 4, 2006 at 5:06 PM PDT Some time ago I was interviewing candidates for a Senior Java Engineer position. Among the many questions I asked was "What can you tell me about weak references?" I…

Concurrency and Coordination Runtime Jeffrey Richter Code download available at:ConcurrentAffairs2006_09.exe(154 KB)  Contents The Dispatcher ClassThe DispatcherQueue ClassThe Port and Arbiter ClassesThe Arbiter ClassCode ExamplesCoordinating Several…

Why thread pools? Many server applications, such as Web servers, database servers, file servers, or mail servers, are oriented around processing a large number of short tasks that arrive from some remote source. A request arrives at the server in som…

Naming Concepts A fundamental facility in any computing system is the naming service--the means by which names are associated with objects and objects are found based on their names. When using almost any computer program or system, you are always na…

See Apache Spark 2.0 API Improvements: RDD, DataFrame, DataSet and SQL here. Apache Spark is evolving at a rapid pace, including changes and additions to core APIs. One of the most disruptive areas of change is around the representation of data sets.…

https://github.com/PacktPublishing/Game-Development-Patterns-and-Best-Practices https://github.com/mattCasanova/Mach5 1. Introduction to Design Patterns (已看) 2. One Instance to Rule Them All - Singletons (已看) 3. Creating Flexibility with the Componen…

题记 度娘上对设计模式(Design pattern)的定义是:"一套被反复使用.多数人知晓的.经过分类编目的.代码设计经验的总结."它由著名的"四人帮",又称 GOF (即 Gang of Four),在<设计模式>(<Design Patterns: Elements of Reusable Object-Oriented Software>)一书中提升到理论高度,并将之规范化.在我看来,设计模式是前人对一些有共性的问题的优秀解决方案的经…

Unity Manual 用户手册 Welcome to Unity. 欢迎使用Unity. Unity is made to empower users to create the best interactive entertainment or multimedia experience that they can. This manual is designed to help you learn how to use Unity, from basic to advanced tech…

文章出处:  http://www.informit.com/articles/article.aspx?p=24094 In the preceding two chapters, I discussed dbExpress—a unidirectional database technology. In the real world, most applications support bidirectional scrolling through a dataset. As noted p…

  Windows lets you share code at the binary level using DLLs. After all, that's how Windows apps function - reusing kernel32.dll, user32.dll, etc. But since the DLLs are written to a C interface, they can only be used by C or languages that understan…