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Assuming class A has a method named getXXX() and class B is a sub class of class A. Now, if we write a method with the same name getXXX() in class B, with exactly the same signature as class A, it is called overriding a method.

The method getXXX() in class A becomes the overridden method.

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14y ago
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12y ago

So you can change a method that maybe you don't like, or to provide more functionality.

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Q: What is the purpose of method overriding?
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Is overriding a dynamic polymorphism in c plus plus or not?

In C++, overriding and function, method, or operator is a different thing than (dynamic) polymorphism, so overriding a polymorphic method is almost entirely possible.


When do you declare a method or class abstract in java?

when overriding of a class or a method is necessary, they can be declared as abstract


What is the difference between overloading and overriding methods in object?

Here are some of the most common differences between both of them. If you are working in Java for more than 1 year, you might be familiar with all of them but any way its good revision: 1) First and major difference between Overloading and Overriding is that former occur during compile time while later occur during runtime. 2) Second difference between Overloading and Overriding is that, you can overload method in same class but you can only override method in sub class. 3) Third difference is that you can overload static method in Java but you can not override static method in Java. In fact when you declare same method in Sub Class it's known as method hiding because it hide super class method instead of overriding it. 4) Overloaded methods are bonded using static binding and Type of reference variable is used, while Overridden method are bonded using dynamic bonding based upon actual Object. 5) Rules of Overloading and Overriding is different in Java. In order to overload a method you need to change its method signature but that is not required for overriding any method in Java.


What is the scope of method overloading and overriding?

Overloading happens when you have multiple methods in the current class that have the same name but different signature. The scope of method overloading is "Within the current class" Overriding happens when your current class extends another class (the parent class) and provides implementation for a method that is already available in the parent class. The scope of method overriding too is "Within the current class"


Difference between Method overloading and method overriding in C plus plus?

Yes. Any base class method that is declared virtual can be overridden by a derived class. Overriding a method that is not declared virtual can still be called, but will not be called polymorphically. That is, if you call the base class method, the base class method will execute, not the override. To call a non-virtual override you must call it explicitly.

Related questions

Is overriding a dynamic polymorphism in c plus plus or not?

In C++, overriding and function, method, or operator is a different thing than (dynamic) polymorphism, so overriding a polymorphic method is almost entirely possible.


How is hiding method different from overriding method in c sharp?

Hiding means a class cannot see the definition. Overriding implies that a class must see that to "override"


Is it possible to implement method overriding in each and every type of inheritance?

Yes. Method Overriding is not possible without inheritance and it can be done in all possible types of inheritance.


How you compare and contrast overloading and overriding methods in java?

Method overloading is when you have multiple methods in a class that have the same name but a different signature. Method overriding is similar to method overloading, with a small difference. In overriding, a method in a parent class is overridden in the child class. The method in the child class will have the same signature as that of the parent class. Since the method in the child class has the same signature & name as the method of its parent class, it is termed as overriding. In situations where you may have to explicitly call the parent class method you can use the "super" keyword and for explicitly calling the current objects method you can use the "this" keyword.


What is the overriding purpose of a speech or written work?

intent


What is method overriding and overloading in java?

Overloading is the means by which we can provide two or more different definitions of the same method in the same namespace. Overriding is the means by which a derived class may redefine the meaning of a base class method.


When do you declare a method or class abstract in java?

when overriding of a class or a method is necessary, they can be declared as abstract


Is it possible to do method overloading and overriding at a time?

no we cannot do both at the same time because overloading requires different arguments and overriding dosenot


What is overriding in c?

Overriding relates to derived classes, where the derived class provides a new implementation for a method declared in the base class. The override is said to be a more-specialised implementation of the base class method, which is itself described as being a generic method. However, the derived class method can still call the base class method, if required.When the designer of a class can predict that their class will be derived from, they will normally provide virtual methods. These methods are expected to be overridden by the derived class. Overriding a non-virtual method can have side effects if the method is also overloaded. Overriding just one overloaded method will effectively hide all the other overloads in the base class, which may be undesirable.


What is overriding method in java with simple example?

ye bohut mushkil sawa lhai


Is it possible to implement method overriding every type of inheritance?

yes if larry has a mustache


What is the difference between overloading and overriding methods in object?

Here are some of the most common differences between both of them. If you are working in Java for more than 1 year, you might be familiar with all of them but any way its good revision: 1) First and major difference between Overloading and Overriding is that former occur during compile time while later occur during runtime. 2) Second difference between Overloading and Overriding is that, you can overload method in same class but you can only override method in sub class. 3) Third difference is that you can overload static method in Java but you can not override static method in Java. In fact when you declare same method in Sub Class it's known as method hiding because it hide super class method instead of overriding it. 4) Overloaded methods are bonded using static binding and Type of reference variable is used, while Overridden method are bonded using dynamic bonding based upon actual Object. 5) Rules of Overloading and Overriding is different in Java. In order to overload a method you need to change its method signature but that is not required for overriding any method in Java.