What are void methods?
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Why destructor is not used in java?
What is the full name of java?
What is a lightweight component?
Explain jdk, jre and jvm?
What is Marker interface in java? and what is clone?
Implement two stacks using a single array.
How does singleton class work?
What is private static in java?
explain Anonynous inner class?
When do we need to use internal iteration? When do we need to use external iteration?
What is default constructors?
String is mutable or immutable?