How do you use wildcards?
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What is the purpose of extern variable?
Why arraylist is used in java?
What is the relationship between clipping and repainting under awt?
Why do we need variables?
What is formatted output?
Explain treeset?
Why java is called not pure object oriented language?
Why is java architectural neutral?
What is the difference between a factory and abstract factory pattern?
What is the latest version of java?
Objects or references which of them gets garbage collected?
How to print nodes of a Binary tree?