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Difference between overloading and overriding?

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2012-02-21 04:36:01
2012-02-21 04:36:01

Overloading the same method name with different number of arguments (and the data types), and perhaps with a different returned data type. The method signatures are different, only the names are the same.

Overriding is to change the same method name with different implementation (the method body). The method signature stays the same.

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overriding means you're changing an already existing method. overloading means you're using the same method name, but you use different parameters in each one.


Runtime prolymorphism means overriding compiletile polymorphism means overloading



Overloading usually signifies having multiple methods inside the same class with different signatures (different return type, arguments) Overriding usually signifies having a method in the child class with exactly the same name and signature as in the parent class.


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


really there is no difference between constructor overloading and metho overloading


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.


Overloading a method means to provide the same method name with different signatures, to cater for all the different parameter types that may be passed to a method. Overriding means to provide a new implementation of an existing method, inherited from a base class. Overloaded methods can also be overridden.


overloading” is having the functions (methods) with the same name but different signatures. Overloading acts on different data types in different ways.“overriding” is having a methods with same name and same signature in a parent class and the child class. Overriding acts on different object types in different ways. ...... ambuj24@gmail.com


method overriding :method overriding means redefine methods in sub classes they already defined in the Super classes.method overloading : It means methods with the same name but with a different signature exist in one class


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.


The dictionary definition of polymorphism refers to a principle in biology in which an organism or species can have many different forms or stages. This principle can also be applied to object-oriented programming and languages like the Java language. Subclasses of a class can define their own unique behaviors and yet share some of the same functionality of the parent class.Overriding and Overloading are two techiques to achive polymorphism in Java.Method overloading: When a method in a class having the same method name with different arguments is said to be method overloading. Method overriding : When a method in a class having the same method name with same arguments is said to be method overriding.


Yes, member function overriding in a derived class is allowed in C++, but only if the function is declared public or protected.Keep in mind that overridding and overloading are two different things, with overloading being the declaration and definition of two or more functions with the same name and scope, but with different numbers and/or types of parameters. Overloading is not related to derivation/overriding, so overloading is always allowed.


Overriding means to provide a new implementation for an existing method. The existing method must be inherited from a base class. Overloading means to provide the same method name, but with a different signature, to cater for the different parameter types the method can accept. Overloaded methods inherited from a base class can also be overridden in a derived class.


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.


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"


There will be an overriding of the atria or overloading of the heart.


By implementing polymorphism we need to use overloading and overriding Technics in program..


Java does not support object overriding. It does support operator overloading by means of the "+" symbol which is used for both numeric addition as well as string concatenation.


Overloading is used when you want multiple methods with the same name and do similar things, with a small difference in the parameters being passed. ex: add(int a, int b); add(float a, float b); etc Overriding is used when you want to mask/override some feature available in a parent class in the child class Both are Java Polymorphism concepts


Overloading is when you have multiple methods of the same name,same parameter list,same return type in a single class.Among method name, parameter list ,return type any thing must be different.Overriding is when you have methods in a child class that has the same name,same parameter list,same return type as in the parent class.


Overloading is when you're asking something, usually some sort of machinery, to do more than it's designed to. Say you have an elevator that's rated for 5 people, but you cram more persons into it - then the elevator is overloaded. Overriding is when an operator decides to ignore or bypass a warning. Say that the warning light for low oil pressure/level lights up in a car, but the driver decides to keep going - then the driver is overriding the warning signal.


Overloading and overriding do similar things but they are distinct. When you override a function, you are providing a new implementation of a function that was inherited from a base class. The signature of an override must be covariant with the base class signature. Overloading means to create several functions with the same name within the same namespace but with different signatures.


Overriding is closely connected to polymorphism. Redefining method is similar to Overriding but you cannot expect those redefined methods to deliver polymorphism.The concept of redefining is used when it involves static methods.


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.



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