How concurrent hashmap works?
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Does java initialize arrays to zero?
When do we use synchronized blocks and advantages of using synchronized blocks?
What is a package?
Java is based on pass by reference or pass by value ..
What is the use of parseint in java?
What is the purpose of static keyword in java?
difference between String a; and String a=new String();? y do v need to assign memory to the variable?
What is api data?
Can a vector contain heterogenous objects?
Can try statements be nested?
What is the difference between an interface and an abstract class?
What are identifiers in java?