What is double data type

Question

I don't know

Answer 1

Its basically a data type thats similar to a float. But it can hold twice as much data as a float can.. It stores decimal numbers eg 1.1, 7.89

Answer 2

Double is a data type which represents a floating point number, i.e. Decimal number. It differentiates from float data type as double occupies normally 8 bytes In memory. While float occupies 4 bytes