Java

1. Deadlock Multithreaded programming in the actual development of the network program, in the implementation of the client program is relatively simple, but in the server-side program implementation is not only a lot of use, and will appear more

The Document Object Model (DOM) is a document standard, and Dom provides a great deal of flexibility for complete documentation and complex applications. The DOM standard is standard. It is strong and complete, and has many implementations. This is

Serial Communication Overview There are many kinds of serial communication protocols, such as rs232,rs485,rs422, even the popular USB is serial communication protocol. And the application of serial communication technology is everywhere. Perhaps

Overview: Most application performance management (APM) solutions only consider and analyze performance issues at one level of the Java application. This approach is not sufficient to address the performance problems of architecture-complex

For an experienced Java developer who has access to the source code, any program can be viewed as a transparent model in a museum. Tools such as thread dumps (dump), method call tracking, breakpoints, slice (profiling), and so on, let us know what

The Java language may be the most widely used programming language that relies on garbage collection, but it is not the first. Garbage collection has become an integral part of many programming languages, including Lisp, Smalltalk, Eiffel, Haskell,

When you use special tags in a field to distinguish between object types, you may produce errors that mark incorrectly labeling related data--known as the impostor Type error pattern. In this part of diagnosing Java code, Eric Allen analyzes the

The main argument for supporting static analysis, including type checking, is that the results apply to all possible runs of the program, while unit tests only guarantee that the tested components (on the platform on which they are tested) apply

Introduction of Jxpath Jxpath is a Java implementation of the XPath provided by Apache, part of the Jakarta, and the latest version is 1.1,jxpath's main feature is a set of Java class libraries that use XPath to access Java classes that conform to

13.4 Chinese Questions Network transmission process of the Chinese problem is also more prominent, the reasons for this problem and the previous IO part of the agreement, are due to the transmission process in the client program and server-side

According to UNIX network programming, IO models can be divided into: blocking io, non-blocking io, io multiplexing, signal-driven IO, and asynchronous Io, divided into two classes according to POSIX standards: synchronous IO and asynchronous IO.

The most recent Java Master version (Java SE 6, also known as Mustang) is now in beta release phase. Although this version is not as much as the Java 5 Update, it does have some interesting new features. Undoubtedly, one of these is support for

A, who is doing garbage Collection? A popular saying: in C + +, the system is doing garbage collection, and in Java, Java itself is doing. In C + +, freeing the memory is handled manually, using the delete operator to free the allocated memory.

Java network programming from getting started to mastering (34): reading and writing data in buffer---using GET and put methods to read and write individual data sequentially The most important operation for a buffer is the read and write operation.

Write a function in Java. The function is as follows: Any given set of numbers, such as {12,60,-8,99,15,35,17,18}, to find out the result of the addition of any number 35 (arbitrary set). can be recursive algorithm to solve: Package test1;

On the previous blog, Web version RSS reader (i)--dom4j read XML (OPML) file has said how to read the RSS subscription file. This time read the subscribed files to the page and use the tree structure to load the display. Do not intend to use a

In previous Java versions, developers could only write annotations (Annotation) in a declaration. For Java 8, annotations can be written anywhere using a type, such as declarations, generics, and coercion of type conversions: @Encrypted String

4.1 Metaphor for development of Java EE Make an analogy. Now the development of Java-EE, just like the opposite of a person. The outermost wear a windbreaker (HTML) Wearing a suit in a windbreaker (Struts) Wearing a vest in a suit (Spring)

In the front of this chapter, we introduced the old-fashioned cardlayout and noticed how we managed all of our card switches. Interestingly, someone now thinks it's a good design. Fortunately, swing has patched it up with JTabbedPane, and the

Creating an independent client that can talk to a Geronimo EJB application Brief introduction This article will show you how to develop independent (FAT) clients that can communicate with EJB applications running within the Geronimo application