What is hash table in java?
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What is Recursion Function?
Difference String and String Buffer
suppose we have an interface & that interface contains five methods. if a class implements that interface then we have to bound that to give tha definition of all five methods in that class. If we declare that class as abstract then can we call only two methods to give the deinition of that method & i don't want to give the definition of all the methods? can it possible
Why is stringbuffer faster than string?
Why should we use java?
What happens when a thrown exception is not handled?
Which is better stringbuffer or stringbuilder?
How many types of operators are there?
Explain what access modifiers can be used for methods?
What are different types of multitasking?
Why do we need array in java?
Write code of any action class?