1.What is constraints and it's types? 2.what is meant by wrapper class? 3.What is meant by string buffer? 4.Write a program to print number of count of characters in a string and remove duplicates by giving user input.

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This interview includes questions related to constraints, wrapper class, string buffer, and programming.
Constraints are rules that limit the values or types of data that can be entered into a field or...read more

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