Convert Negative Numbers to Positive Numbers
Here we'll look at a way of converting negative numbers to positive numbers.
Should you have a number, which happens to be a negative number, eg -5, and you want to convert that number into a positive number, ie 5 (+5), C# provides a method which will convert the number for you.
The Math.Abs() method will perform the conversion for you, it returns what is known as the absolute value of a number, that is the positive value of a number.
In this example, we create an integer called _number and give it a negative value of -5. Then we convert this negative number into a positive number in the integer called _positiveValue by calling the Math.Abs() method and passing the method the negative value.
// return the positive value of a number
int _number = -5;
// _positiveValue will equal 5;
int _positiveValue = Math.Abs(_number);