what is polymorhism what is inheritance? what is Abstract n Interface? what if two interfaces have same method and a concrete class is implementing both the interfaces. Will there be a compilation error? What are mutable and immutable classes? How can u make a class mutable? when will u use dem ...explain with example? what is overriding and overloading? what is garbage collection? what is Thread? how do dey communicate? what are the different ways of implementing ? have u used any messaging technologies? what is synchronization? what are some additions in java 1.5? what are generics? whst is advanced for loop? what is finally block? can u have a try in finally? yes!! can u have a finally in finally? how do you write junits? when is a object eligible for garbage collection?explain? a = null and b has ref to a will b be eligible to be garbage collected? sql questions like diff joins? how do dey work? exception handling? what is marker interface? what is the need??

0 Answers   JPMorgan Chase,

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How long will it take to learn java?

0 Answers  

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What is executor memory?

0 Answers  

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What is CardLayout?

1 Answers   Infosys,

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why we import both packages java.awt.*; and java.awt.event.*; as java.awt.*; can import all classes na. then what is the need of importing java.awt.event.*; ?

3 Answers  

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What does pointer mean?

0 Answers  

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When is the finally clause of a try-catch-finally statement executed?

0 Answers  

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How to sort numbers in java without array?

0 Answers  

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How 'java' got its name and what it stands for?

11 Answers   Wipro,

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What happens when heap memory is full?

0 Answers  

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What is the use of using enum to declare a constant?

0 Answers   Fidelity,

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When the constructor of a class is invoked?

0 Answers  

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