What are internal and external variables?
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What is contract between hashcode and equal method?
Does .length start 0 java?
What is an exception in java?
How will you override default serialization mechanism in java
What are the 3 types of loops in java?
What is functional interface in java example?
Should database connections be singleton?
What is method Overriding in the perspective of OOPS?
garbate collector(GC)?
Can a class be subclass of itself?
What is the difference between a static and a non-static inner class in java programming?
What does math floor () do?