Answer / ravikiran(aptech mumbai)

Set interface is the one which will provide convinience
methods to add the objects which contains no duplicates.

Answer / vijayakumar chinnasamy

Set is an interface in java.util package.Set does not allow
duplicate values but using set we can easily sort the
elements in ascending order using treeset.

What are the advantages of autoboxing?

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How do you pass by reference?

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Can a final variable be null?

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How do you do exponents in java?

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Difference between stack and queue?

0 Answers   Flextronics,

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What is command line argument

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Can we declare a static variable inside a method?

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When we give defination of interface method in the class why method must be public???

2 Answers  

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Java violates few objected oriented concepts. Can you explain in what way?

3 Answers   Ness Technologies,

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class{ ... ... interface myinterface{ ... ... } abstract class{ .. .. } ... .. .. } is this possible to write "Interface and/ or Abstract class inside a class ? if possible whcich one is possible is only interface? is only abstract?

2 Answers   Logica CMG,

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How can constructor chaining be done using this keyword?

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Is vector synchronized in java?

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