// Java does not allow a class to extend multiple classes.  Since Java 8,
// interfaces can have default function implementations.  What does this
// mean for classes that implement multiple interfaces?

interface I1
{
   default int f() { return 1; }
   default void g() { System.out.println(1); }
   void h();
}

interface I2
{
   default int f() { return 2; }
   default void g() { System.out.println(2); }
   void h();
}


class multi implements I1, I2 // won't compile unless f, g overriden:
{
    public void h() { System.out.println("multi.h"); }
    
    // conflicting default methods must be overriden in concrete class:
    public int f() { return 3;  /* return I1.super.f(); */ }
    public void g() { I2.super.g(); }  // choose to inherit g from I2

    public static void main(String[] argv)
    {
	multi m = new multi();
        m.g();
    }//main
}

/// But it's still not possible to inherit from multiple classes ... or is it?

// ASSIGNMENT: Show how to emulate the inheritance of multiple CLASSES in C#.