How to call overloaded parameterized constructor of base class using 'super' in java with ternary operator?

Question

I know that the ternary operator in Java should return something. But I don't know what should I return while calling the constructor.

This is my code :

class Base
{
    public Base(int a, int b)
    {
        System.out.println("Constructor of Dummy");
        System.out.println("a: "+a);
        System.out.println("b: "+b);
    }
    public Base(float a)
    {
            System.out.println("Constructor of Dummy");
            System.out.println("a: "+a);
    }
}

class Derived extends Base
{
    public Derived(int c)
    {
        c%2==0 ? super(10,20) : super(1.4f);
    }
}

class test
{
    public static void main(String args[])
    {
        Derived d1 = new Derived(5);
    }
}

Please answer if someone knows about it.