how can you retrive information from database by using hashmap/arraylist ,plz explain with example briefly?

1 Answers   Satyam,

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When should I use abstract classes and when should I use interfaces?

2 Answers  

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This is related to threads. I have a class with synchronized method m1(). Can I create different instances of this class and execute the m1() for different threads?

3 Answers  

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What is java algorithm?

0 Answers  

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What are the common uses of "this" keyword in java ?

0 Answers  

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What is use of functional interface in java 8? Explain

0 Answers  

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Why string objects are immutable in java?

0 Answers  

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What is unicode with example?

0 Answers  

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what is an virtual function

2 Answers   TCS,

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How many ways can an argument be passed to a subroutine and explain them?

0 Answers  

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Explain OOPs concept.

0 Answers   Syntel, Visa,

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Why const and goto are reserved keyword in java?

1 Answers  

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