java basic concepts pdf

With the release of the iPhone SDK, And the SDK can only use the OSX platform, it is estimated that application development in Mac will become increasingly popular in the xcode environment, the following article introduces the basic concepts of using xcode for Mac development. It is worth reading. From here.When you face MS Visual Studio dizzy and powerless, you must be desperate, helpless, why Microsoft li

Original URL: http://www.wowotech.net/bluetooth/bt_overview.html1. PrefaceSince 1994 by Ericsson launched, Bluetooth technology has gone through 20 years. From the initial Bluetooth V1.0, to the Bluetooth V4.0 (the latest release for the end of v4.1,2013), has undergone nearly 9 revisions, evolving into the current situation.To tell the truth, today's Bluetooth 4.1, is a hodgepodge: Br/edr follow the old Bluetooth specification, le plagiarism 802.15.4;amp directly use 802.11. And all of this is

There have been a number of similar projects from GitHub, Java, Python, C + + and Ruby. I took a Java down, it is almost difficult not to charge any Chuihuizhili run up, have to look at the change, a pit trip past. Generally understand the process, or decide to write their own, convenient to continue to modify the perfect later.So the use of Epublib and pdfbox,200 line code, the

　SOA is the abbreviation for the English word "service oriented Architecture", in which there are many translations, such as "service-oriented Architecture", "service-centric architecture" and "service-oriented Architecture", where "service-oriented architecture" is more common. SOA has many definitions, but basically it can be divided into two categories: one is that SOA is primarily an architectural style, and the other is that SOA is a new set of distributed software system construction metho

1. What is a computer, what is a CPU, and how it works. (I won't tell you the answer to these and the concepts to be mentioned below. You can read the corresponding teaching materials. I will detail the teaching materials in the next section and remember to understand them !) 2. Concepts of machine language and micro-instruction set. 3. program concept. 4. The Assembly Language is a low-level language, but

Many applications require a PDF document to be generated dynamically. These applications cover readers who generate customer statements and mail-delivered banks to purchase specific book chapters and receive these book chapters in PDF format. This list is too numerous. In this article, we will use the IText Java library to generate

object's properties are actually data, stored in the heap, and the object's behavior (method) is running logic, placed in the stack. When we write the object, we write the data structure, and also write the logic of the processing. I have to admit, object-oriented design is really beautiful.in Java, the main function is the starting point of the stack and the starting point of the program.。There is always a starting point for the program to run. Like

This article is from a blog with you. The original title is "JVM tuning Summary (1)-some concepts". Data Type In Java virtual machines, data types can be divided into two types: basic type and reference type. A variable of the basic type stores the original value, that is, the value represents the value itself, and a v

Basic concepts related to classes ---- Beginning Visual C #,For more articles, see my personal homepage: zhongxiewei.com. Class Definition Modifier of the definition class: Internal (default access modifier), the code in the current project has access to it Public (access modifier) to make public its accessibility Abstract indicates that this class is an abstract class and cannot be instantiated. It can

inheritance mechanism.Since the 80 's, people have carried out a great deal of theoretical research and practical exploration based on the concepts of information concealment and abstract data types, as well as the foundation laid down by MODULA2, Ada and Smalltalk and other languages, along with the promotion of objective demand. Different types of object-oriented languages (such as: Object-c, Eiffel, C + +, Jav