Java

  Content Description: This article uses examples to explain how to use Java's features to quickly write secure and reliable NT services, how to implement Java multithreading, and how to use sockets to implement network services.I. Introduction to

Most Java programmers are familiar with the basic operations on JAR files. However, only a few programmers know the powerful functions of the JAR file format. In this article, the author discusses many functions and advantages of the JAR format,

We still use Tomcat as the web server. If you are not familiar with how to use tomcat, please refer to relevant materials. We usually write wml scripts when developing WAP applications. In fact, we can use java Servlet/jsp technology to develop WAP

The standard Persistence Solution of the MIDP application is to use RMS. RMS is similar to a small database. RecordStore is equivalent to a database table. Each "table" consists of several records, A record is a RecordID and content represented by

In addition to game programs, there are usually many screens or canvases in the MIDP applications. These screens are usually switched by commands, for example, when you click "Next", you should jump to the Next screen and click "Back" to return to

Time Processing is quite common in program development. Here is a simple description of time processing.I. Expression of timeTime can be expressed in two ways:1. represented by the difference in milliseconds between midnight and the present GMT on

The description of Java rules described in this article is divided into five levels. Level 1 is the most basic and important level, and other rules will be written in the future. Following these rules can improve the program efficiency and make the

101. Is there any memory leakage in java? Please briefly describe it.Yes. For example: int I, i2; return (i-i2); // when I is a positive number large enough, i2 is a negative number large enough. The result may cause overflow and errors.102. What is

Simon Phipps, Chief open-source officer of Sun Microsystems Inc, recently mentioned to the author that SUN will release an OpenSource version of Java! After Jonathan Schwartz took office, Sun's open-source determination was demonstrated to the world

The Hibernate configuration file can be in either hibernate. properties or hibernate. cfg. xml format.The latter is a little more convenient. When adding an hbm ing file, you can add it directly in hibernate. cfg. xml without adding it to the

At the agile technical expert forum held at Shanghai Jiao Tong University in June 6, Martin Fowler, a software technology master, was very proud. After more than an hour of lectures and on-site programming, Martin and several agile technical experts

Q: How do I set the environment variables of Java 2 (JDK1.2?A:After installing Java 2, you need to set the PATH and JAVA_HOME environment variables. Different from JDK1.1: After setting the JAVA_HOME environment variable, JVM will automatically

The JVM Specification defines two types of class loaders: Start the internal loader (bootstrap) and user-defined loader (user-defined class loader ). 1. Basic concepts of ClassLoader 1. ClassLoader class loaders are used to load classes into JVM.

  PrefaceThis article mainly discusses Java's violation control, including the following:1) What is violation control?2) concept of violation3) class hierarchy in Java4) how to throw and capture violations5) how to handle the violation after

  The Http client program has been integrated into the Java language and can be called through the URLConnection class. Unfortunately, SUN has not published the source code of the Http client program, and its implementation details are still a

　Basic ConceptsStruts is an Open Source project of the Jakarta Project Team of the Apache Foundation. It adopts the MVC mode and can help java developers develop Web applications using J2EE. Like other java architectures, Struts is also an

The method for compiling the Eclipse plug-in is very simple. You only need to write an application and "add" it to Eclipse. However, like writing music, you must first learn a lot of relevant knowledge before you can create a book. This article will

This is a small example of using java to operate the scanner:Package edu. ctgu. JTwacker;Import java. awt. BorderLayout;Import java. awt. Cursor;Import java. awt. Dimension;Import java. awt. Graphics;Import java. awt. Rectangle;Import java. awt.

Bromon originality, please respect copyright Object Relative ing (ORM) is a hotspot in object-oriented development. It is used to solve the complexity and inconvenience of manual OR ing during JDBC development. The Entity Bean in EJB is well-known

By Narayanan A.R. June 15,200 5Translate zhangv (derekzhangv.at.hotmail.com)Original article: http://www.devx.com/Java/Article/28422/0/page/3Figure 3Figure 3 describes the design of the AOP method and the interaction between classes at a more