What do you mean by default constructor in java?
What are singleton services?
What's the purpose of static methods and static variables?
What are loops in java? What are three types of loops?
What is a class reference?
What are the Object and Class that classes used for?
Can you access non static variable in static context?
what is class.forname() and how it will be useful ?
What is the tradeoff between using an unordered array versus an ordered array?
When is an object subject to garbage collection?
What is the difference between hashset and treeset in java?
What is difference between c++ and java ?
Difference between this(), super()?
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