int FeetToInches(int feet) is a method accepting the paramter feet of type int and defines a return type of int.
return; can only be used in a method without a return type, return inches; returns the variable inches
About the difference in your code sample, they differ in a lot of ways, and the only thing they share is * 12 to calculate feet. But input and output are different.
solved what is the difference between these codes “c sharp , c#”? [closed]