Error generated when tried to call superclass method from the main method of the program

Question

I'm new to Java and is trying to learn the concept of inheritance. When I tried to call the EggLayer's identifyMyself() method from the main class's identifyMyself method() using

System.out.println(EggLayer.super.identifyMyself());

it works as expected. However, when I tried to call the EggLayer's identifyMyself() method from the main class's main method() using the same statement, the compiler generate an error saying:"not a enclosing class: EggLayer".

Could someone please explain to me why this is the case?

  interface Animal {
    default public String identifyMyself() {
        return "I am an animal.";
    }
}

 interface EggLayer extends Animal {
    default public String identifyMyself() {
        return "I am able to lay eggs.";
    }
}

 interface FireBreather extends Animal { 
     @Override
     default public String identifyMyself(){
         return "I'm a firebreathing animal";
     }
 }

public class Dragon implements EggLayer, FireBreather {
    public static void main (String... args) {
        Dragon myApp = new Dragon();
        System.out.println(myApp.identifyMyself());
        /**
        *Not allowed, compiler says "not a enclosing class: EggLayer"
        *System.out.println(EggLayer.super.identifyMyself());
        */
    }

    public String identifyMyself(){
        //Call to EggLayer.super.identifyMyself() allowed
        System.out.println(EggLayer.super.identifyMyself());
        return "im a dragon egglayer firebreather";

    }
}

score 1 · Accepted Answer · answered Dec 31 '15 at 08:20

1

the problem in your code is that your dragon class implements two interfaces with : default public String identifyMyself() method both returning different things . Also eggLayer is not a class it is an interface

answered Dec 31 '15 at 08:20

Agbalaya Rasaq

125
1
10

Error generated when tried to call superclass method from the main method of the program

1 Answers1