/media/sda-magnetic/david/Extern-Magnetic-2022-06-29/Extern01/Dokumente-2021-05-8/disk10-ab-2020-01-10/02-debian-pc2-work/informatik/java-new/2021-01-10/InterfaceTestProg.java

public class InterfaceTestProg {
    public static void main (String [] args) {
        ClassXYZ xyz = new ClassXYZ ();
        
        xyz.printA ();
        xyz.printB ();
        xyz.printC ();
    }
    
    interface InterfaceA {
        void printA ();
    }
    interface InterfaceB {
        void printB ();
    }
    interface InterfaceC extends InterfaceA, InterfaceB {
        void printC ();
    }
    public static class ClassXYZ implements InterfaceC {
        ClassXYZ () {}
        public void printA () {System.out.println ("A");}
        public void printB () {System.out.println ("B");}
        public void printC () {System.out.println ("C");}
    }
    
}