please explain me dynamic methos dispatch

Can any one explain me how the following code executes::

class A
{

void m1(A a)
{
System.out.println("A");
}

}



class C extends A
{

void m1(C a){
System.out.println("C");
}

}

class Dmd
{

public static void main(String args[])
{
A ac = new C();
C c = new C();
ac.m1(c);
}
}

OUTPUT:: A

i am ajay doing b.tech .
hello in the above example i am sending reference c as argument and i though the output will be "C" but unfortunately it was "A"
i am unable to understand what is happening can any one say me
Thanks in advance...

I already answered that exact same question in this thread.

kind regards,

Jos

Same code, but fleshed out a little more:

Code:

---

class Animal
{

        void eat(Animal a)
        {
                System.out.println("I'm eating an Animal.");
        }
       
        void legs() {
                System.out.println("I may not have legs at all.");
        }

}

---

Code:

---

public class Biscuit {
        // doesn't do anything -- just food
}

---

Code:

---

class Cat extends Animal
{

        void eat(Cat a){
                System.out.println("I'm eating a Cat.");
        }

        void eat(Biscuit b) {
                System.out.println("I'm eating a Biscuit.");
        }
       
        void legs() {
                System.out.println("I have four legs.");
        }

}

---

Code:

---

class Demonstration
{
        public static void main(String args[])
        {
                Animal ac = new Cat();
                Biscuit b = new Biscuit();
                Cat c = new Cat();
                ac.eat(c);
                // ac.eat(b); -- can't do this! Animal has no eat(Biscuit) method! so...
                ((Cat) ac).eat(b);
                ((Cat) ac).eat(c);
                ac.legs();
                c.eat(c);
                c.eat(ac);
                c.eat(b);
                c.legs();
        }
}

---

Output:

I'm eating an Animal.
I'm eating a Biscuit.
I'm eating a Cat.
I have four legs.
I'm eating a Cat.
I'm eating an Animal.
I'm eating a Biscuit.
I have four legs.

It's still somewhat surprising, but it starts to make sense with the additional examples.

-Gary-

Quote:

---

Originally Posted by JosAH

I already answered that exact same question in this thread.

kind regards,

Jos

---

I didn't see that before I posted. OP, it's not nice to waste people's time with cross-posting.

-Gary-