[RESOLVED] Interface Usage. Am I doing this right?

[gjon]

book says that interfaces specify behavior without implementing it. That doesn't really explain much to me.

If you could please look at what I've done and tell me if I am using the interface properly, I would really appreciate it. What I've done seems to work. But I don't understand why I would want to use an interface. It seems to me that it's some way to pass objects around and use methods easier? But I am not sure since it seems I am repeating methods anyways.

If you think it could be done in a better way, I would love to know how. But my main hope is that I am doing this correctly and could use some help with understanding how to use an interface.

Thanks so much in advance.

class Arm : IBendable
 
{
 
public Arm()
 
{
 
 
}
 
public void Raise()
 
{
 
Console.WriteLine("Raising arm up.");
 
}
 
public void Bend()
 
{
 
this.Raise();
 
}
 
}

class Spoon : IBendable
 
{
 
public Spoon()
 
{
 
}
 
public void Eat()
 
{
 
Console.WriteLine("Eating from the spoon.");
 
}
 
public void Bend()
 
{
 
this.Eat();
 
}
 
}

namespace Prog6_18
 
{
 
public interface IBendable
 
{
 
// Any class that implements the IShape interface
 
// must define the following methods:
 
void Bend();
 
}
 
}

class Prog6_18
 
{
 
static void Main(string[] args)
 
{
 
Spoon childsSpoon = new Spoon();
 
Arm childsArm = new Arm();
 
EatFood(childsArm);
 
EatFood(childsSpoon);
 
}
 
public static void EatFood(IBendable a)
 
{
 
a.Bend();
 
}
 
}