You asked: Is return type should be same in overriding in Java?

The return type must be the same as, or a subtype of, the return type declared in the original overridden method in the superclass.

Should return type be same in method overloading and overriding?

Return type of method does not matter in case of method overloading, it can be same or different. However in case of method overriding the overriding method can have more specific return type (refer this). Argument list should be different while doing method overloading.

Can we change the return type of method to subclass while overriding?

Before Java5, it was not possible to override any method by changing the return type. But now, since Java5, it is possible to override method by changing the return type if subclass overrides any method whose return type is Non-Primitive but it changes its return type to subclass type.

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Can we change data type in method overriding in Java?

You can change the return type when you override the method: it just has to be overridden with a covariant type.

Is method name same in overriding?

The implementation in the subclass overrides (replaces) the implementation in the superclass by providing a method that has same name, same parameters or signature, and same return type as the method in the parent class. … Some languages allow a programmer to prevent a method from being overridden.

Can overriding have different return types?

No method overloading is not possible in case of different return type, because compiler can’t figure that which method he need to call.. In this case compiler will never know which method to be invoked.

Can a method be override with the same method name and arguments but different return types in Java?

No, you cannot overload a method based on different return type but same argument type and number in java.

What is covariant return type in method overriding?

In object-oriented programming, a covariant return type of a method is one that can be replaced by a “narrower” type when the method is overridden in a subclass. … This usually implies that the return types of the overriding methods will be subtypes of the return type of the overridden method.

What is covariant return type the overriding method can have derived type as the return type instead of the base type?

9 Answers. Covariant return, means that when one overrides a method, the return type of the overriding method is allowed to be a subtype of the overridden method’s return type.

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Can we have different return type in method overloading in Java?

The compiler does not consider the return type while differentiating the overloaded method. But you cannot declare two methods with the same signature and different return type. It will throw a compile-time error.

How do you change return type?

No, you can’t change the return type. Passing in a bool for this is just ugly. But, please, don’t do this. You could return object or some other type that all possible return types inherit from, but other than that, you can’t change the return type on the fly.

Is Signature same in method overriding?

If we use overriding, then the overriding method should have the same signature as the overridden method. You can change the method signature accordingly in your child class, i.e number of arguments, type and order of arguments, and return type. But this is known as overloading.

Is overriding and overloading both static polymorphism?

Method overloading is an example of static polymorphism, while method overriding is an example of dynamic polymorphism. An important example of polymorphism is how a parent class refers to a child class object.

Why We Need method overriding in Java?

The purpose of Method Overriding is that if the derived class wants to give its own implementation it can give by overriding the method of the parent class. When we call this overridden method, it will execute the method of the child class, not the parent class.

What is overriding method in Java?

In any object-oriented programming language, Overriding is a feature that allows a subclass or child class to provide a specific implementation of a method that is already provided by one of its super-classes or parent classes.

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Can we override main method in Java?

No, we cannot override main method of java because a static method cannot be overridden.