public override string ToString()
{
string model = $"{Model}:";
string engine = Engine.ToString();
string weight;
string color;
if (Weight != 0)
{
weight = $" Weight: {Weight}";
}
else
{
weight = $" Weight: n/a";
}
if (Color != null)
{
color = $" Color: {Color}";
}
else
{
color = $" Color: n/a";
}
return($"{model}\n{engine}\n{weight}\n{color}");
}
public override string ToString()
{
var sb = new StringBuilder();
sb.Append($"{CarModel}:");
sb.AppendLine();
sb.Append($" {Engine.ToString()}");
sb.AppendLine();
sb.Append(Weight == 0 ? " Weight: n/a" : $" Weight: {Weight}");
sb.AppendLine();
sb.Append(String.IsNullOrEmpty(Color) ? " Color: n/a" : $" Color: {Color}");
return(sb.ToString().TrimEnd());
}