Hard
Which modification of the following code WILL NOT make the output be "success" ?
class A {
public void talk() {
echo "success"
}
}
class B extends A {
public void talk() {
echo "fail"
}
}
A a = new B();
a.talk();
Author: SamuelStatus: PublishedQuestion passed 421 times
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Community Evaluations
Delightful Zebra
30/03/2022
La classe B hĂ©ritant de A, aucun objet A ne peut ĂȘtre une instance de B, la dĂ©claration B a = new B() est donc impossible.
Auteur anonyme
06/04/2022
Bonjour, je ne vois pas de ligne "B a = new B()" est-ce que tu parles de "B a = new A()"?
tasouf
03/09/2023
normalement ca va donner fail est non pas success
Auteur anonyme
03/11/2023
La question ne parle pas de donner "success", peux-tu préciser ?
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In this code, the class B extends the class A. The class B overrides the method talk() from the class A. The object b is an instance of the class B. The object a is an instance of the class A. The object a is assigned to the object b. The object a calls the method talk(). The method talk() from the class B is called.