Why are arrays useful in java?
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Explain java heap space and garbage collection?
Is null false in java?
How many types of modifiers are there?
Why do we need singleton class?
1.IN CASE OF DYNAMIC METHOD DISPATCH WHY WE USE REFERENCE VARIABLE,WE CAN USE THE DIFFERENT DEFINED OBJECT DIRECTLY TO ACCESS THE DATA MEMBER AND MEMBER FUNCTION OF THAT RESPECTIVE CLASS?WHAT IS THE MAIN FUNCTION OF "REFERENCE VARIABLE" HERE?
what is the purpose of the final in the try-catch-final
Can static methods access instance variables in java?
Why java is called not pure object oriented language?
What are java annotations?
Can a final variable be null?
Which containers use a FlowLayout as their default layout?
What is the use of http-tunneling in rmi?