What is nested interface?
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What are the advantages of inner classes?
In which order the iterator iterates over collection?
Explain the usage of this with constructors?
If an object is garbage collected, can it become reachable again?
How is string immutable in java?
what is run time polymorphism
What is the range of a character variable?
Difference between notify() method and notifyall() method in java?
What is string data type?
Interface A { String test(); } Interface B { int test(); } Create a class AB which must implements both A & B interfaces.
What are the topics in core java?
what is difference between Interface and abstract class