Class is not compiling!

[bluej]

Hello, I am having to write a program and to describe it simply I basically have to choose between a list of shapes to display (initial shape is a point, shapes are described in subclasses), then choose from a JComboBox its color and control its size using a slider.

I attached the code.

The class is not compiling though and I know the reasons why because java is telling me (there may be more):
-The class is not abstract and does not override abstract method stateChanged in ChangeListener (I need the interface ChangeListener for my slider!)
-Method setColor(java.awt.Color) has not been declared (not sure how/what I should declare)

But I don't know how to fix them...I would really appreciate if you can help me out with that!

These are probably rather silly questions, I am a beginner to java and I have to write a program that is beyond my level now

Thanks in advance!

[JosAH]

-The class is not abstract and does not override abstract method stateChanged in ChangeListener (I need the interface ChangeListener for my slider!)
-Method setColor(java.awt.Color) has not been declared (not sure how/what I should declare)

- implement the stateChanged( ... ) method in your class because it promised to be a ChangeListener (declared by the interface).
- define a method setColor( ... )

kind regards,

Jos

[bluej]

Hello, Sorry for not replying earlier.
Thanks for that!
I was going to ask you to elaborate but I figured it out, I kind of knew what i needed it to do but it is the codes I was finding confusing!