Medium
What does this code return ?
public abstract class A {
public abstract void talk();
}
public class B extends A {
public void talk() {
echo "Hello !"
}
}
A a = new B();
a.talk();
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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.