Why stringbuilder is not thread safe?
What about static nested classes in java?
What are the advantages of unicode?
What is meant by object oriented programming – oop?
What is anonymous inner class?
Differentiate between a constructor and a method? Can we mark constructors final?
When abstract methods are used?
What is stack explain?
What is the multilevel inheritance. and also give the Example of it ?
Where and how can you use a private constructor?
Do extraneous variables affect validity?
Why volatile is used in java?
Can bool be null?