Eclipse - find all classes that extend interface

Question

We have an interface that has a child interface. Ie:

public interface GenCalculator extends Serializable {}

public interface SpecialCalculator extends GenCalcu         


        

Answer 1

Click on GenCalculator in the editor and press CTRL+T. You will see the quick complete hierarchy.

It is possible to have that aswell in the "Open Type Hierarchy" view, but you will have to switch the different options (button in the upper right corner).