"what is an overridden method" course hero

What is method overriding in Java?

Method Overriding in Java. If subclass (child class) has the same method as declared in the parent class, it is known as method overriding in Java. In other words, If a subclass provides the specific implementation of the method that has been declared by one of its parent class, it is known as method overriding.

Why can we not override static method?

It is because the static method is bound with class whereas instance method is bound with an object. Static belongs to the class area, and an instance belongs to the heap area.

Does a method have to have the same parameter as the parent class?

The method must have the same parameter as in the parent class.

Is run method overriding?

In this example, we have defined the run method in the subclass as defined in the parent class but it has some specific implementation. The name and parameter of the method are the same, and there is IS-A relationship between the classes, so there is method overriding.

What is method overriding in a class?

Method overriding, in object-oriented programming, is a language feature that allows a subclass or child class to provide a specific implementation of a method that is already provided by one of its superclasses or parent classes. 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. The version of a method that is executed will be determined by the object that is used to invoke it. If an object of a parent class is used to invoke the method, then the version in the parent class will be executed, but if an object of the subclass is used to invoke the method, then the version in the child class will be executed. Some languages allow a programmer to prevent a method from being overridden.

When overriding one method with another, what happens?

When overriding one method with another, the signatures of the two methods must be identical (and with same visibility). In C#, class methods, indexers, properties and events can all be overridden.

What is a thought class?

Class Thought represents the superclass and implements a method call message(). The subclass called Advice inherits every method that could be in the Thought class. However, class Advice overrides the method message(), replacing its functionality from Thought .

When a subclass contains a method that overrides a method of the superclass, it can invoke?

In Java, when a subclass contains a method that overrides a method of the superclass, it can also invoke the superclass method by using the keyword super. Example:

How to determine version of a method?

The version of a method that is executed will be determined by the object that is used to invoke it. If an object of a parent class is used to invoke the method, then the version in the parent class will be executed, but if an object of the subclass is used to invoke the method, then the version in the child class will be executed.

Can a method be declared override in C++?

In C++11, similar to Java, a method that is declared final in the super class cannot be overridden; also, a method can be declared override to make the compiler check that it overrides a method in the base class.

Does C# support overriding?

C# does support method overriding , but only if explicitly requested using the modifiers override and virtual or abstract .