Which statement is true regarding polymorphism? a.An overridden method can be less restrictive than the superclass method.b.An overridden method can be more restrictive than the superclass method.c.Overloaded methods cannot change the return type.d.Constructors can be overridden.
Question
Which statement is true regarding polymorphism? a.An overridden method can be less restrictive than the superclass method.b.An overridden method can be more restrictive than the superclass method.c.Overloaded methods cannot change the return type.d.Constructors can be overridden.
Solution
The correct statement regarding polymorphism is: a. An overridden method can be less restrictive than the superclass method.
Here's why:
a. An overridden method can be less restrictive than the superclass method. This is true. In Java, if a superclass method is declared protected, its subclass overridden method can have a less restrictive access modifier like public, but not a more restrictive one like private.
b. An overridden method can be more restrictive than the superclass method. This is false. As explained above, an overridden method in a subclass cannot have a more restrictive access modifier than the method in the superclass.
c. Overloaded methods cannot change the return type. This is false. Overloaded methods can change the return type. Overloading is about having the same method name but different parameters. The return type doesn’t affect method overloading.
d. Constructors can be overridden. This is false. In Java, constructors are not inherited by subclasses so they cannot be overridden.
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Which statement is true regarding polymorphism?OptionsAn overridden method can be more restrictive than the superclass methodAn overridden method can be less restrictive than the superclass methodOverloaded methods cannot change the return typeConstructors can be overridden
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