♦ Java abstract classes Vs interfaces Interview Q&As

Q1. When to use an abstract class over an interface? Q2. What is a diamond problem? Q3. Does Java support multiple inheritance? In design, you want the base class to present only an interface (or a contract) for its derived…

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Arulkumaran Kumaraswamipillai
Mechanical Engineer to freelance Java developer within 3 years. Freelancing since 2003 for the major banks, telecoms, retail & government organizations. Attended 150+ Java job interviews, and most often got 3-6 job offers to choose from. Published Java/JEE books via Amazon.com in 2005, and sold 35K+ copies. Books are outdated and replaced with this online Java training. Join my LinkedIn group. 1,350+ paid memberships.

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