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  • 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?

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Shivprasad Koirala
We conduct training for Java/J2EE technologies like design patterns, J2EE, Struts, Hibernate, Spring, Rich Interface etc. and likes to write articles on the same in free time.
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