Is is possible to define our own functional interface?
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Explain about the relationship between object oriented programming and databases?
What's the main difference between arraylist / hashmap and vector / hashtable?
What is the use if instanceof keyword?
Explain the usage of encapsulation?
Can we override static methods? Why?
Why does java not support multiple inheritance?
Can an interface have an inner class?
What is Overloading ? Is it similar to overriding ?
Can we access interface static method using interface references?
Can you instantiate an abstract class and what is an inner class?
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What is the need of multiple inheritance?
How does abstraction differ from encapsulation.