java general

a tutorial

verview of images in game programming A short overview of the most common image types used in game programming: JPEG, GIF and PNG. Discusses their advantages and disadvantages.
3 base classes for a Java game programmer The following article describes a system of three classes I wrote for making Java games. You may use them for learning or for making your own games. You will only need to extend one of them, while the classes I wrote handle input (by listening to it,...
Constructors A constructor is used when creating an object from a class. The constructor name must match the name of the class and must not have a return type. They can be overloaded, but they are not inherited by subclasses.
Extending Ant to support interactive builds Ant, from Jakarta project at the Apache Foundation, has become a de facto standard for building Java projects. You may already be using it to create automatic builds. It's easy enough to tailor those builds to your needs by customizing the build files; ...
User interface logic in use case modeling This article leads you into the gray zone between modeling and method, with a look at requirements gathering via use case modeling. In particular, this article focuses on the relationship between user interfaces, system interfaces, and use case descript...
Thread synchronization Every object in Java code has one lock, which is useful for ensuring that only one thread accesses critical code in the object at a time. This synchronization helps prevent the object's state from getting corrupted.
Web Services for DB2 Cube Views Web Services for DB2 Cube Views provide access to multidimensional data stored in DB2. These Web services allow a client application to read data from the cubes and perform basic online analysis on multidimensional data and metadata through the Web, usi...
Encapsulation Encapsulation is the concept of hiding the implementation details of a class and allowing access to the class through a public interface.
Interfaces An interface is like a public class that has only abstract and public methods. The variables declared in an interface are implicitly public, static, and final.
Behavior of the garbage collector A Java programmer does not have to worry about memory management, because it is automatically taken care of by the garbage collector. The Java virtual machine (JVM) decides when to run the garbage collector. The garbage collector is a low priority threa...
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java general…