Select the correct answerWhich 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
Question
Select the correct answerWhich 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
Solution
The correct answer is: "An overridden method can be less restrictive than the superclass method".
Here's why:
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An overridden method can be more restrictive than the superclass method: This is false. In Java, an overridden method cannot be more restrictive than the method in the superclass. It can be less restrictive, but not more.
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An overridden method can be less restrictive than the superclass method: This is true. In Java, an overridden method can have a less restrictive access modifier than the method in the superclass.
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Overloaded methods cannot change the return type: This is false. In Java, overloaded methods can change the return type. The return type is not part of the method signature in Java, so it does not affect method overloading.
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Constructors can be overridden: This is false. In Java, constructors cannot be overridden. Each class has its own constructor, and it cannot be overridden like a normal method.
Similar Questions
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.
Select the correct answerWhich of these allows compile-time polymorphism?OptionsMethod overloadingMethod overridingBothNone of the above
Select the correct answerIn which scenario does Java NOT allow polymorphism?OptionsWhen using the method overloadingWhen overriding private methodsWhen using interface methodsWhen using abstract methods
Select the correct answerIn Java, what concept allows us to implement runtime polymorphism?OptionsMethod overridingMethod overloadingConstructorsStatic methods
Which of the following statements are true? Please select all that apply.Group of answer choicesTo override a method, the method must be defined in the subclass using the same signature and compatible return type as in its superclass.Overloading a method is to provide more than one method with the same name but with different signatures to distinguish them.It is a compile error if two methods differ only in return type in the same class.A private method cannot be overridden. If a method defined in a subclass is private in its superclass, the two methods are completely unrelated.A static method cannot be overridden. If a static method defined in the superclass is redefined in a subclass, the method defined in the superclass is hidden.
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