How does hashset work in java?

0 Answers  

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What is the need to implement Serializable interface (with no methods) for objects which are to be serialized ? We can write our own functionality which writes objects to streams then why we need to implement and tell JVM that which objects can be serialized.

6 Answers   iFlex, Sapient,

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define System.out.println(); what is the meaning!

19 Answers   Accenture,

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why the equals method can be override?when we override the equals method?

5 Answers  

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Difference between string s= new string (); and string s = "abv";?

0 Answers   Cap Gemini,

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explain me with a code snippet about the generation and handling of null point exceptions.

1 Answers  

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This abstract class is correct ? abstract class A { public abstract void Disp(); public abstract void B() { } public absract virtual C() { } }

0 Answers   HCL,

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What is the primary benefit of encapsulation?

0 Answers  

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How do you pass by reference?

0 Answers  

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What is the difference(or similarity if there are some) between object and a variable?

4 Answers   ME,

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What is core java called?

0 Answers  

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Can you override a private or static method in java?

1 Answers  

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