The IDE has a dynamic code completion feature for the Java Editor that enables you to type a few characters and then display a list of possible classes, methods, variables, and so on that can be used to automatically complete the expression.
Similarly, in the HTML or JSP Editor you can type a few characters and then display a list of possible tags, attributes, and attribute values that can be used to automatically complete the tag.
Follow these links for information about code completion:
Completing a Java Expression
Completing an HTML Tag
Setting the Completion Box Delay
Disabling Automatic Code Completion
Setting Code Completion Shortcuts
The elements displayed in the Java code completion box are defined by the code completion database. For information about the code completion database and how to update it to include your classes in the code completion box, see:
Code Completion Database
Java elements in the code completion box are distinguished by the same icons that appear in the Filesystems window. For a definition of these icons, see:
Node Icons in the Filesystems Window