Consider the classes below,declared in the same file:
Class A
{
Int a;
Public A()
{
A = 7;
}
}
Class B : A
{
Int b;
Public B()
{
B = 8;
}
}
Which of the statements below is false
A) Both variables a and b are instance variables.
B) After the constructor for class B is executed, the variable a will have the value 7.
C) After the constructor for class B is executed, the variable b will have the value 8.
D) A reference to class A can be treated as a reference to class B.

Question

Quizplus · Accepted Answer

A reference to class A cannot be treated as a reference to class B, but the opposite is true. This is because B is a subclass of A, meaning it inherits all of A's properties and methods, but not vice versa. Therefore, any reference to an instance of B can be treated as a reference to an instance of A, but not the other way around.

Consider the Classes Below,declared in the Same File