How do you use wildcards?
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What variables are stored in stack?
What is java thread dump, how can we get java thread dump of a program?
Why can't we make a class private in java?
What is thread pool? How can we create thread pool in java?
What is Co-Variant return type in method overriding?
what is object deep copy and shallow copy and why it is required?
How do you create a reference in java?
Where are the card layouts used?
Explain runtime exceptions?
What is a stringbuilder?
What is a Hash Table? What are the advantages of using a hash table?
What are java packages? What is the significance of packages?