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Is string a wrapper class?
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How do we make a class serialize?
whats is inheritance?
15 Answers CTS, HCL,
How do you make an arraylist empty in java?
What is difference between array and arraylist in java?
Is map ordered 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 is the meaning of find and replace?
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Does 'true' and 'false' are keywords?
without using arthematic operation ,how can you write the logic for adding/substraction/multiplication?
7 Answers Tanla Solutions, Wipro,
Core Java 
