PPLAB10_ZAD1

public interface Printable {
    public void print();
}

**********

public class ParaWyswietlajaca<A extends Printable, B extends Printable > extends Para {

    public ParaWyswietlajaca(A objA, B objB){
        super(objA,objB);
    }

    public void print(){
        objectA.print();
        objectB.print();
    }

}

**********

public class ParamB implements Printable {

    public void print(){
        System.out.println("Jestem parametrem B");
    }
}

**********

public class ParamA implements Printable {

    public void print(){
        System.out.println("Jestem parametrem A");
    }
}

**********

public class Para<A extends Printable,B extends Printable>{
    A objectA;
    B objectB;

    public Para(A objA, B objB){
        objectA = objA;
        objectB = objB;
    }

    public void print(){
        System.out.println("Jestem para");
    }
}

**********

public class Main {
    public static void main(String[] args){
        List<Para> lista = new ArrayList<Para>();
        lista.add(new Para(new ParamA(),new ParamB()));
        lista.add(new Para(new ParamB(),new ParamA()));
        lista.add(new Para(new ParamB(),new ParamB()));
        lista.add(new Para(new ParamA(),new ParamA()));
        lista.add(new ParaWyswietlajaca(new ParamA(),new ParamB()));
        lista.add(new ParaWyswietlajaca(new ParamB(),new ParamA()));
        lista.add(new ParaWyswietlajaca(new ParamB(),new ParamB()));
        lista.add(new ParaWyswietlajaca(new ParamA(),new ParamA()));

        for(int i=0; i<lista.size();i++){
            lista.get(i).print();
        }
    }
}