· What is Upper bounded wildcards in generics?
· What is JAR file?
· What are different types of inner classes?
· Can we declare an anonymous class as both extending a class and implementing an interface?
· What is the difference between a static and a non-static inner class?
· How does Java handle integer overflows and underflows?
· Does garbage collection guarantee that a program will not run out of memory?
· What is the purpose of finalization?
· Can an unreachable object become reachable again?
· What is a reflection package?
· What do you mean by immutable? How to create an immutable object?
· What is class loader in java?
· What is a weak reference?
· What is object cloning?
· What is object pooling?
· What are marker interface /tag interface?
· What is the difference between Comparable and Comparator?
· Does a class inherit the constructors of its superclass?
· What are annotations used for?
· What are the annotations used by compiler?
View the rightside video on Hibernate and it concept in Java: -
