Double Data Type In C++ With Example

Double Data Type ?

Double data type is used for stores fractional numbers, containing one or more decimals. Sufficient for storing 15 decimal digits values or decimal values.

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Double data type :

➦ Double data type is used for stores fractional numbers, containing one or more decimals. Sufficient for storing 15 decimal digits values or decimal values.

➦A double type can represent fractional as well as whole values.

Syntax:

  double Value1;
  double Value2 = 1.5;

Example 1:

Output :

    19.99

Example 2:

Output :

	Size of char : 1 byte
	Size of int : 4 bytes
	Size of short int : 2 bytes
	Size of long int : 8 bytes
	Size of signed long int : 8 bytes
	Size of unsigned long int : 8 bytes
	Size of float : 4 bytes
	Size of double : 8 bytes
	Size of wchar_t : 4 bytes