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Author Archives: Hugh Hamill

Hugh Hamill
Hugh is a Senior Software Engineer and Certified Scrum Master based in Galway, Ireland. He achieved his B.Sc. in Applied Computing from Waterford Institute of Technology in 2002 and has been working in industry since then. He has worked for a several large blue chip software companies listed on both the NASDAQ and NYSE.

Abstraction in Java – The ULTIMATE Tutorial (PDF Download)

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                      Table Of Contents 1. Introduction 2. Interfaces 2.1. Defining Interfaces 2.2. Implementing Interfaces 2.3. Using Interfaces 3. Abstract Classes 3.1. Defining Abstract Classes 3.2. Extending Abstract Classes 3.3. Using Abstract Classes 4. A Worked Example – Payments System 4.1. The Payee Interface 4.2. The Payment System 4.3. The Employee ...

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