MSDN: The return statement terminates execution of the method in which it appears and returns control to the calling method. It can also return an optional value. If the method is a void type, the return statement can be omitted.
public int Sum(int valueA, int valueB)
{
return valueA + valueB;
}
public void Terminate(bool terminateEarly)
{
if (terminateEarly) return; // method returns to caller if true was passed in
else Console.WriteLine("Not early"); // prints only if terminateEarly was false
}