difference between String a; and String a=new String();? y do v need to assign memory to the variable?

2 Answers  

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what do you meant by Runtime Polymorphism?

13 Answers   BVIMR, IBM, Persistent,

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What is the purpose of a transient variable?

0 Answers  

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How to perform selection sort in java?

0 Answers  

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What is the point of polymorphism java?

0 Answers  

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Create a form of user Login in JSP, that accepts the user name and password from user and authenticate it with user names and passwords stored in database. (Plz provide me answer immediately)

1 Answers   ABC,

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Java is Pass by Value or Pass by Reference?

0 Answers   BirlaSoft,

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how to use this key word in java programming?

7 Answers  

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how is final different from finally and finalize in java?

0 Answers   DELL,

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Can we add two byte variables and assign the result to a byte variable ? b=b1+b2 where b,b1,b2 are byte types

4 Answers   TCS,

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Is multiple inheritance allowed in Java? Why ?

7 Answers  

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What is use of a abstract variable?

0 Answers  

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