public int CompareByFuelConsumption(SportCar one, SportCar two)
{
if (ReferenceEquals(one, two))
{
return(0);
}
if (ReferenceEquals(one, null))
{
return(-1);
}
if (ReferenceEquals(two, null))
{
return(1);
}
return(one.FuelConsumption.CompareTo(two.FuelConsumption));
}
public int CompareByBrandName(SportCar one, SportCar two)
{
if (ReferenceEquals(one, two))
{
return(0);
}
if (ReferenceEquals(one, null))
{
return(-1);
}
if (ReferenceEquals(two, null))
{
return(1);
}
return(one.BrandName.CompareTo(two.BrandName));
}
public int CompareByEngine(SportCar one, SportCar two)
{
if (ReferenceEquals(one, two))
{
return(0);
}
if (ReferenceEquals(one, null))
{
return(-1);
}
if (ReferenceEquals(two, null))
{
return(1);
}
return(one.Engine.CompareTo(two.Engine));
}