This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
hey friends i m new to java , i learn that after implementing interface, we have override all its method bt in below code show1() is not override but it is extending by Mynewclass,, can anybody explain me that concept,, thank you.
A class only has to implement all the methods in the interface if it is not "abstract." If it is abstract, the unimplemented methods, act as abstract methods in the class and the subclass has to implement it.
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