Dart int toDouble()
Syntax & Examples

int.toDouble() method

The `toDouble` method in Dart converts this number to a double.

Syntax of int.toDouble()

The syntax of int.toDouble() method is:

 double toDouble()

This toDouble() method of int return this num as a double.

Return Type

int.toDouble() returns value of type double.


✐ Examples

1 Convert a positive integer to double

In this example,

  1. We assign the value 5 to the integer variable num.
  2. We convert num to a double using the toDouble() method.
  3. We print the result to standard output.

Dart Program

void main() {
  int num = 5;
  double doubleNum = num.toDouble();
  print('Double value of $num: $doubleNum');
}

Output

Double value of 5: 5

2 Convert a negative integer to double

In this example,

  1. We assign the value -3 to the integer variable num.
  2. We convert num to a double using the toDouble() method.
  3. We print the result to standard output.

Dart Program

void main() {
  int num = -3;
  double doubleNum = num.toDouble();
  print('Double value of $num: $doubleNum');
}

Output

Double value of -3: -3

3 Convert a positive integer to double

In this example,

  1. We assign the value 10 to the integer variable num.
  2. We convert num to a double using the toDouble() method.
  3. We print the result to standard output.

Dart Program

void main() {
  int num = 10;
  double doubleNum = num.toDouble();
  print('Double value of $num: $doubleNum');
}

Output

Double value of 10: 10

Summary

In this Dart tutorial, we learned about toDouble() method of int: the syntax and few working examples with output and detailed explanation for each example.