What is a line break?
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What is Overriding and how can it be used?
What causes memory leaks in java?
How do you sort arraylist in descending order?
What class is used to implement a Throwable array?
What is array in java?
I have a sorting issue with a Hashmap. My constraint is that I MUST use the Hashmap and work with existing code. I do a database query and place the results in a Hashmap. When I iterate thru the Hashmap, it loses the original alphabetical sorting done by the database. So, my problem is that I must sort the results coming out of the Hashmap which is then placed into another class.
What's the access scope of protected access specifier?
What is instanceof keyword?
What is Map interface?
what is the diffrence between class and object?
What is meant by local variable and instance variable?
Describe the Big-O Notation.