Java

Functions of vectors: 1. can store any object 2. Cannot store basic types of data, such as 39, unless the data is wrapped in a parcel class 3. Its capacity can be automatically expanded according to demand 4. Increase the efficiency of the

In tutorial (10), we learned about the two common relationships between Java classes, that is, association and dependency. If a is associated or dependent on B, if only from A to B in this direction, from the number, there may be 1 to 1 and 1 pairs

Perhaps every software practitioner has a transition from learning a console application to learning visual programming, the advantage of a console application is that it is easy to practice the syntax and development habits of a language (such as.

1, what is xmemcached? Xmemcached is a memcached client API based on the Java NIO implementation. It's actually based on a simple NIO framework I've implemented (currently based on YANF4J 0.52), and the core code is no more than 1000 lines, http://

Java does not support multiple inheritance of classes, but you can use an inner class to inherit the implementation of more classes. In the following example, the target class needs to inherit two abstract classes (A and B). The target class C

This is the last piece of Java talk, to the ORM framework of the end of the discussion, but also to the last part of the Java EE to cover, the reason is so late to sum up the ORM this aspect, one is the author of these two weeks busy, on the other

package test; Import java.io.* public class test implements serializable{ int i=0; 　 Don't let variable j serialize transient int j=0; 　　 public static void Main (string[] args) { Test test=new test (); test.i=3; Test.j=7; System.out.println

Import Java.applet.Applet; import java.awt.*; import java.awt.event.*; import java.net.*; import java.io.*; public class Sendapplet extends Applet implements ActionListener { Label sendlable; Label Messageinfo; Button Sendbutton; TextField

Learn how to deploy the Java™ Server page (JSP), servlet, and different Enterprise JavaBean (EJB) on Apache Geronimo. This article contains the deployment steps required by Apache Geronimo, which is not quite the same as other Java 2 Platform

The current development Community's oriented of AOP (Aspect-programing) has also spawned a large number of excellent frameworks that support AOP,--Spring, JAC, Jboss AOP, and so on. AOP seems to have become a fad. Java beginners can not help but to

This is the first project to take over after joining the new company, using weblogic9.2 + ejb2.0, the stress test found that the speed is very slow, the response time is very unsatisfactory, the check log found that some of the EJB invoke the method

The following is a survey of the Java EE container redeployment time, which shows that some conclusions can be drawn and benefit the vast majority of developers. Recently, Jevgeni Kabanov published a few months ago on the Java EE Development,

The linked list is an important data structure, which occupies a very important position in the program design. C and C + + language is the use of pointers to implement the linked list structure, because the Java language does not provide pointers,

Memory is a design pattern derived from Lisp,python, and Perl and other procedural languages, which can be used to memorize the results of previous calculations. A function that implements the memory function, with explicit cache, so that the

To add a smaller auxiliary function In the initial version of the Swing toolkit, creating too many point, rectangle, and dimension objects can seriously affect program performance. Although it seems more efficient to return multiple values in one

Generally speaking, to use Java to get hard disk space, there are 3 ways: 1. Call the system command, and then analyze the resulting results, this method has a strong system-dependent, Linux and win under the separate write program Here is a win

By building a class loading component container framework that can isolate Java class loads into a specified jar file, you can ensure that runtime loads the component version you expect. Java's class loading framework is powerful and flexible. It

Java EE Many people know the Java EE, but how many people really know what it means? Simply put, Java EE is a business application system model, or a specification, that includes a java-based remote method call (RMI), Enterprise-class JavaBean (EJB),

JAXP api--Embedding different interpreters Sax Interpreter +dom Interpreter +xsl Converter javax.xml.parsers中加载XML文档的类： DocumentBuilder DocumentBuildrFactory SAXParser SAXParserFactory ===================================== SAX API XML interpreter

1th Chapter Basic Knowledge 1.1. One-Key cipher system Single-key cryptosystem is a traditional encryption algorithm, which means that the sender and receiver of the information together use the same key to decrypt. In general, the encryption