Creating an instance

[Kagiso]

Good people please help with this:

say class Apple extends class Fruit, is it allowed to have something like this

Apple c = new Fruit();

Just saw it in a mock exam

[Fubarable]

What do you think is the correct answer? And have you tried this?

[Kagiso]

my bad, my bad! Forgive me,I was just being lazy. I just tried it, & it can't compile because Apple & Fruit are incompatible types

[Fubarable]

No, it's not because their incompatible, but rather the example has them reversed. A general type can be assigned a more specific (child) instance, but not the other way around. This is because the child retains all of the states and behaviors of the parent, and can be held by a parent variable, but again, not the other way around.