Question

Predict the return data type of math.round()

Answer 1

Answer:

Math.floor method returns the largest double value that is less than or equal to the argument and is equal to a mathematical integer. As -5.0 is the largest mathematical integer less than -4.7 so it is the output. Note that -4.7 is a negative number so the largest integer less than -4.7 is -5.0 and not -4.0.

Explanation:

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Answer 2

Predict the return data type of math.round()

long or int