New to Java

Hi guys,

Can someone explain to me what this means, I know + is public and - is private but thats about it. I know the top square is the public class name, the second the variables, but im confused about the third, what do they mean and how am i supposed to create a program from them.

Thanks Guys.

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Rectangle
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- width : int
- height : int
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+ Rectangle(int, int )
+ getWidth( ) : int
+ getHeight( ) : int
+ calcArea( ) : int
+ equalArea( Rectangle ) : boolean
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The equalArea method returns true if the area of the Rectangle object and the Rectangle passed as a parameter are equal.