Difference between overriding and redefining...

[asif_plz]

please see the below example ....And when we make both method static its calls accordingly the reference variable.......But still they override the method so how come the method redefining .....i am not clear with the redefine please let explain it in more details.....


class Animal
{
void doStuff()
{
System.out.println("Aniaml");

}
}

class Dog extends Animal

{
void doStuff()

{
System.out.println("Dog");

}
}

public class TestAnimal
{
public static void main(String as[])

{
Animal a= new Animal();
Animal b= new Dog();

a.doStuff();
b.doStuff();

}
}

[JosAH]

Make both the doStuff() methods static, ignore the warnings and run your code again. See?

kind regards,

Jos

[DarrylBurke]

Forum Rules
Guide For New Members
BB Code List - Java Programming Forum

db

[DarrylBurke]

asif_plz, you didn't bother to reply to the two responses on your earlier thread.
Autoboxing & Unboxing

Not the best way to continue to get free help on a forum, that.

db

[awinston]

I didn't realize that an instance of a class could run the static methods of its own class. I always assumed that the only way to call a static method of class Animal is this:

Animal.doStuff();

[JosAH]

I didn't realize that an instance of a class could run the static methods of its own class. I always assumed that the only way to call a static method of class Animal is this:

Animal.doStuff();

It's even funnier; try this:

Animal foo= null;
foo.doStuff();

No null pointer exception, no nothing; except the static method from the Animal class is run ...

kind regards,

Jos

[Tolls]

I didn't realize that an instance of a class could run the static methods of its own class. I always assumed that the only way to call a static method of class Animal is this:

Animal.doStuff();

You ought to continute doing it that way, though, for this very reason.
Calling a static method from an instance variable tends to lead to confusion.
Luckily you tend to get a warning if you do it by accident.