public class Swapper {
public void Swap(int x, int y) {
System.Console.WriteLine("In Swap(): initial x = " + x + ", y = " + y);
int temp = x;
x = y;
y = temp;
System.Console.WriteLine("In Swap(): final x = " + x + ", y = " + y);
}
}
class MainClass {
public static void Main() {
int x = 2;
int y = 5;
System.Console.WriteLine("In Main(): initial x = " + x + ", y = " + y);
Swapper mySwapper = new Swapper();
mySwapper.Swap(x, y);
System.Console.WriteLine("In Main(): final x = " + x + ", y = " + y);
}
}