Use dataType casting. For example:
// converting from double to float:
double someValue;
// cast someValue to float!
float newValue = (float)someValue;
Cheers!
Note:
Integers are whole numbers, e.g. 10, 400, or -5.
Floating point numbers (floats) have decimal points and decimal places, for example 12.5, and 56.7786543.
Doubles are a specific type of floating point number that have greater precision than standard floating point numbers (meaning that they are accurate to a greater number of decimal places).