Not sure...

[Ray]

Okay, I'm pretty new to java, just learning about classes and objects.
So I have a super class: bicycle
subclasses: mountainbike
Here they are:
public class Bicycle
{
public int speed;
public int gear;

public Bicycle(int startSpeed, int startGear)
{
speed = startSpeed;
gear = startGear;
}

public void changeSpeed(int newSpeed)
{
speed = newSpeed;
}

public void changeGear(int newGear)
{
gear = newGear;
}

}

and
public class MountainBike extends Bicycle
{
private int chairHeight;

public MountainBike(int newChairHeight)
{
chairHeight = newChairHeight;
}
}
When attempting to compile MountainBike, i get:
constructor bicycle in class bicycle cannot be applied to given types
required int int, found no arguments
What arguments do I need?
How do i make it work :s
Noob question I know.

Finally, lets say I have another subclass called roadbike.

I can't have a userinterface class that extends both roadbike and mountainbike.
Like, lets say the userinterface asks, "which bike do you want to ride?"
well i mean... how do you do it?

[Norm]

Please post the full text of the compiler error message that shows the source line where the error is.

Please edit your post and wrap the code in code tags:
BB Code List - Java Programming Forum

required int int, found no arguments

The compiler could not find a call to the defined constructor for the Bicycle (with int int args) and is trying to generate a call to a constructor with no arguments and can not find a definition for that constructor.
Either call the one with (int int) or define a constructor without any args.

[Junky]

Finally, lets say I have another subclass called roadbike.

I can't have a userinterface class that extends both roadbike and mountainbike.
Like, lets say the userinterface asks, "which bike do you want to ride?"
well i mean... how do you do it?

Not really sure what you are trying to do but Java does not support multiple inheritance. So class C cannot extend class A and class B.

[DarrylBurke]

Please go through the Forum Rules -- particularly the third paragraph.

db