Define Destructor?
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What's the main difference between arraylist / hashmap and vector / hashtable?
Explain the abstract class modifier?
What is the difference between function overloading and over riding?
What are the different types of inheritance?
Name the different creational patterns in object oriented design?
Why does java not support multiple inheritance?
Can an interface have an inner class?
Difference: Object Oriented Analysis (OOA) and Object Oriented Design (OOD)?
What is the use if instanceof keyword? And how do refer to a current instance of object?
Explain about object oriented programming?
Why is class hierarchies managed in object-oriented programming?
What are the problems faced by the developer using object oriented programming language?