How does a cookie work in Servlets?
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Can I overload to string method
Difference between interface and abstract class with ex.
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When do we need to use internal iteration? When do we need to use external iteration?
Marker interface means , interface which has no methods.Then what is the necessity of its usage.I read "it tells the compiler that it should be treated differently ". "It is used to store state of an object". But still am not clear.Please explain clearly.
How to display all the prime numbers between 1 and n (n is the number, get the input from user)
which of tha following is not a thread safe class? a) ArrayList b)Vector c)HashTable d)None
Program to Find the second largest element in an array.
What is the difference between double and float variables in java?
What are the 3 types of control structures?
Explain static nested classes ?
What is a module function?
What are design patterns and please explain?