Map map = new HashMap(2); map.add(“1”,”one”); map.add(“2”,”two”); map.add(“3”,”three”); What will happen at this line?

5 Answers   Rolta,

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What is treeset in java?

0 Answers  

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How do you invoke a method?

0 Answers  

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What does it mean to flush a file?

0 Answers  

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What is the difference between a vector & an array list?

0 Answers   Agilent,

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What is a string what operation can be performed out with the help of a string?

0 Answers  

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Can we extend singleton class?

0 Answers  

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system.out.println(1 + 3);

8 Answers  

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Hi Friends, I am beginner in java. what i know about synchonized keyword is,If more that one 1 thread tries to access a particular resource we can lock the method using synchronized keyword. Then after that how the lock is released and how next thread access that.Please explain with example.

5 Answers  

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How to write custom exception in java?

0 Answers   Cyient,

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Write a program to print the pattern given below

0 Answers  

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is it possible to add a object in a HASHMAP

6 Answers   HCL,

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