Q. Which among the following is not an interface declared in System.Collection namespace?

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Q. Which among the following is the correct way to find out the number of elements currently present in an ArrayListCollection called arr?

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Q. Which is the correct statement about an ArrayList collection that implements the IEnumerable interface?

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Q. Which statements among the following are correct about the Collection Classes available in Framework Class Library?

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Q. Among the given collections which one is I/O index based?

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Q. Which among the given statements are correct about the Stack collection?

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Q. A HashTable t maintains a collection of names of states and capital city of each state.Which among the following finds out whether “New delhi” state is present in the collection or not?

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Q. In which of the following collections is the I/O based on a key?

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Q. The wrong statements about a HashTable collection are?

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Q. Which of these classes contains only floating point functions?

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Q. What is the value of double constant ‘E’ defined in Math class?

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Q. Which among the given classes provides types of rounding functions?

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Q. Which of these methods is a rounding function of Math class?

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Q. Which of these method returns a smallest whole number greater than or equal to variable X?

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Q. Which of these methods return a largest whole number less than or equal to variable X?

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Q. Which of the following functions return absolute value of a variable?

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