Glossary

ABSTRACT CLASS

A class that cannot be instantiated because it either contains abstract methods or is declared to be abstract.

ABSTRACT METHOD

A declaration of an operation that concrete subclasses must implement.

ABSTRACT SYNTAX TREE

A structure, created by a parser, that organizes input text according to a language's grammar.

ABSTRACTION

A class that depends on abstract methods that are implemented in subclasses or in implementations of an interface.

AERIAL SHELL

A firework that is fired from a mortar and that explodes midflight, ejecting and igniting stars.

ALGORITHM

A procedure, or sequence of instructions, that accepts inputs and produces outputs.

API
See [APPLICATION PROGRAMMING INTERFACE]
APOGEE

The greatest height that a fired or flying ...

Get Design Patterns Java™ Workbook now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.