Which collection is thread safe in java?

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What isan abstract class and when do you use it?

1 Answers   Genpact,

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What is JDK? Mention the variants of JDK?

1 Answers  

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I want to print “hello” even before main is executed. How will you acheive that?

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What is instance example?

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what state does a thread enter when it terminates its processing? : Java thread

0 Answers  

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I have a sorting issue with a Hashmap. My constraint is that I MUST use the Hashmap and work with existing code. I do a database query and place the results in a Hashmap. When I iterate thru the Hashmap, it loses the original alphabetical sorting done by the database. So, my problem is that I must sort the results coming out of the Hashmap which is then placed into another class.

1 Answers  

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What is the difference between serial and throughput garbage collector?

0 Answers  

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Which browsers work with java?

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Explain thread life cycle in java?

0 Answers  

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Can a class declared as private be accessed outside it’s package?

0 Answers  

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What are the types of statement? explain

1 Answers   SysBiz,

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