What is covariant return type?

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What is the difference between final, finally and finalize()?

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Is it safe for adding 10,00,000 records/objects to HashMap?, i.e is it safe to add millions of objects to HashMap?

2 Answers  

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what are the states associated in the thread? : Java thread

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what is the use of clone() in real time scenario?

2 Answers   Quinnox,

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Write a java program to find the route that connects between Red and Green Cells. General Rules for traversal 1. You can traverse from one cell to another vertically, horizontally or diagonally. 2. You cannot traverse through Black cells. 3. There should be only one Red and Green cell and at least one of each should be present. Otherwise the array is invalid. 4. You cannot revisit a cell that you have already traversed. 5. The maze need not be in the same as given in the above example

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What is the difference between method overriding and overloading?

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what is type of statement in jdbc connection?

3 Answers  

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What is deadlock and how to avoid this?

2 Answers  

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can we write program without class

6 Answers   TCS,

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What is meant by flickering?

0 Answers  

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How do you reverse a string in java?

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