Sybex CSG 11 - page 378

[Michael Reeve]

The following example code appears on page 378, illustrating interface usage:

interface Nocturnal {
   public int hunt();
}

interface CanFly {
   public void flap();
}

interface HasBigEyes extends Noctural, CanFly {}

public class Owl implements Noctural, CanFly {
    public int hunt() { return 5; }
    public void flap() { System.out.println("Flap!"); }
}

The text then states "In this example, the Owl class implements the HasBigEyes interface..." - but it doesn't, it implements the same two interfaces that HasBigEyes does, but it doesn't implement that interface.

[Charles O'Leary]

Michael Reeve wrote:
The text then states "In this example, the Owl class implements the HasBigEyes interface..." - but it doesn't, it implements the same two interfaces that HasBigEyes does, but it doesn't implement that interface.

Welcome to Coderanch!

Didn't find that in the errata. You are correct!  CSG appears to have the same typo.

[Jeanne Boyarsky]

Good catch. The text is correct. We meant for Owl to implement HasBigEyes