Focus on Java Blog

Sun Tech Days is a travelling road-show that has been ongoing for the past ten years. The concept is to provide technical education in Java Technology and Solaris products. ... Read More

It may sound like a course on the basics of gift-wrapping, but a primitive wrapper class is altogether different. If you recall your primitive data types (I know you ... Read More

So, I am happily coding along one day when I type in the following code: Enumeration enum = myShoppingList.elements(); enum.hasMoreElements();) // and so on and so forth I compile my code and I ... Read More

Arrays and Vectors in Java are quite similar. They both represent a collection of similar items. For example, a good usage of an array would be a variable ... Read More

If you have ever done a search for Java tutorials or introduction to Java, I have little doubt that your search was fruitless. In fact, there are thousands of ... Read More

There are two things in life that are constant.... death and taxes. In Java, unlike in life, you have control over what is constant and what is not. ... Read More

The 2008 JavaOne conference will be held at San Francisco's Moscone Center on May 6 through May 9, 2008. The cost to attend the event may be prohibitive for ... Read More

Exceptions are issues that could cause your program to go haywire, such as a missing file or a null pointer. Exception handling is the process by which you can ... Read More

The new year is here, and it's resolution time. I have never been good at keeping resolutions, especially those weight loss ones, but one year I actually did manage ... Read More

Java String objects are somewhat quirky. They are immutable, meaning they cannot be changed, and String literals are interned automatically by the Virtual Machine in a special memory area ... Read More