How large is a boolean?
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How do you compare two strings lexicographically?
What type of language is java?
What is formatted output?
What is user defined exception?
What are serialization and deserialization?
Is it safe for adding 10,00,000 records/objects to HashMap?, i.e is it safe to add millions of objects to HashMap?
Marker interface means , interface which has no methods.Then what is the necessity of its usage.I read "it tells the compiler that it should be treated differently ". "It is used to store state of an object". But still am not clear.Please explain clearly.
What is compareto () in java?
Write a java program for binary search?
How can you say HashMap is syncronized?
why is multiple inheritance not allowed in java?
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When object is created and destroyed?