Code Against Interfaces, Not Implementations

Abstract

An old and true rule of thumb useful for every piece of code is to “separate your code into interface and implementation and then let other parts of the system rely just on the interfaces.” This advice is much older than Java, but it’s so true that it’s valuable to investigate its implications for writing Java APIs. This chapter provides an overview from various angles.

Keywords

Virtual Machine Java Class Final Class Abstract Classis Return Type 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Jaroslav Tulach 2008

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