Dont instantiate Abstract Class Java

Pubblicato il: 02 febbraio 2014
sul canale di: Interview DOT

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Short Java Interview Question And Answer ?

1.Difference between Interfaces and Abstract classes ?

Abstract classes have a body ( member elements ) where as Interfaces just have methods and static member declarations.

2.Explain Constructor ?

Its an operation that initializes the object. Its a block of code which is executed at the time of Object creation.

3.What is Dynamic Binding ?

Association of function call to function definition during run time.

4.What is the use of Volatile Keyword ?

Volatile is a declaration that a variable can be accessed by multiple threads and hence shouldn't be cached.

5.Explain Serialization ?

Storing the state of an object in a file or database or other medium.

Dont instantiate Abstract Class Java

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