Java is pass by value or pass by reference? Explain
What is method reference?
what is aggregation in java?
Why does my function print none?
Catch(Exception e){ } in that what is Exception and purpose of that in that place exactly?
What is difference between an object and a class?
Can two objects have same hashcode?
What is the difference between hashset and treeset in java?
How do you compare values in java?
How do you add an element to an arraylist in java?
What is the return type of the main method?
How do listeners work?
How to instantiate static nested classes in java?