Glossary
A
abstract a Java keyword.
abstract class a class defined with keyword abstract. This class cannot be used to create objects. Abstract classes are defined so that other classes can extend them and make them concrete by implementing the abstract methods.
abstract data type a data type. It is not built in the compiler. It is user defined. Normally it is a class. It is defined to implement some idea say a Queue. Abstract means user has defined its behaviour (in terms of instance variables and methods).
abstract method a method that has no implementation.
Abstract Window Toolkit (AWT) a collection of Graphical User Interface (GUI) components that were implemented using native-platform versions of the components. These components provide ...
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