Why stringbuilder is not thread safe?
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how can you retrive information from database by using hashmap/arraylist ,plz explain with example briefly?
What is super keyword explain with example?
Can we use return in constructor?
Give an example of use of pointers in java class.
How to decrease number of hashings in has
What is a native method?
Explain about interthread communication and how it takes place in java?
What is a default constructor and also define copy contrucyor?
Is string thread safe in java?
Do extraneous variables affect validity?
Why pass by reference is not possible in java?
What is the use of static class?