/*
Mastering Visual C# .NET
by Jason Price, Mike Gunderloy
Publisher: Sybex;
ISBN: 0782129110
*/
/*
Example5_3.cs illustrates how to define methods
that return a value and accept parameters
*/
// declare the Car class
class Car
{
public int yearBuilt;
public double maximumSpeed;
// the Age() method calculates and returns the
// age of the car in years
public int Age(int currentYear)
{
int age = currentYear - yearBuilt;
return age;
}
// the Distance() method calculates and returns the
// distance traveled by the car, given its initial speed,
// maximum speed, and time for the journey
// (assuming constant acceleration of the car)
public double Distance(double initialSpeed, double time)
{
return (initialSpeed + maximumSpeed) / 2 * time;
}
}
public class Example5_3
{
public static void Main()
{
// declare a Car object reference and
// create a Car object
System.Console.WriteLine("Creating a Car object and " +
"assigning its memory location to redPorsche");
Car redPorsche = new Car();
// assign values to the fields
redPorsche.yearBuilt = 2000;
redPorsche.maximumSpeed = 150;
// call the methods
int age = redPorsche.Age(2001);
System.Console.WriteLine("redPorsche is " + age + " year old.");
System.Console.WriteLine("redPorsche travels " +
redPorsche.Distance(31, .25) + " miles.");
}
}