Fahrenheit to Celsius conversion

Question

I\'m trying to write a program that converts temperatures expressed in degree Fahrenheit to degree Celsius. The user enters a Fahrenheit value and the program prints out the

Answer 1

double ft = 5 / 9 ;

The line above doesn't do what you think it does.
Because 5 and 9 are both integers, it does integer division. The fact that you're assigning the result to a double doesn't matter, if both operands are integers, you will get integer math.

So ft is always 0, so cel is always 0

Try

double ft = 5.0/9.0;