/media/sda-magnetic/david/Dok-15-2023-11-27/fernuni-hagen/cs-i-ii/old-cs-2-03/java-new/2021-01-07/InterfaceTestProg.java

public class InterfaceTestProg {
    public static void main (String [] args) {
        Person pers = new Person ();
        
        pers.printA ();
        pers.printB ();
        pers.printC ();
    }
    
    public interface PersonA {
        void printA ();
    }
    
    public interface PersonB {
        void printB ();
    }
    
    public interface PersonC extends PersonA, PersonB {
        void printC ();
    }
    
    public static class Person implements PersonC {
        public void printA () {System.out.println ("A");}
        public void printB () {System.out.println ("B");}
        public void printC () {System.out.println ("C");}
    }

}