Does hashset allow duplicates in java?
What is the use of collections in java? How it is implemented in real time applications?
How do you override a method?
Can an arraylist be empty?
What do you mean by a JVM?
How infinite loop is declared?
Thanks A.jyotsna, Can u tell me differnce between abstract class and interface vikash
What is a nested class?
What is the benefit of using enum to declare a constant?
What does ide stand for?
What is the use of volatile in java?
What is a data structure java?
What is substring 1 in java?