how to know the total memory occupied by the objects in the
ArrayList(Array list may contain duplicate objects)
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write a program to create an arraylist and listeterator.and value should be enter through keyboard.
Is 0 a prime number?
What is the purpose of stub and skeleton?
What is static data type in java?
What collections you have worked on? Internal working of Hashmap?
Mention the default values of all the elements of an array defined as an instance variable.
Explain the differences between public, private, protected and static?
Explain aggregation in java?
What is java virtual machine and how it is considered in context of java’s platform independent feature?
Which is better list or arraylist in java?
What will be the initial value of an object reference which is defined as an instance variable?
What is Overriding and how can it be used?
Core Java 
