What is the difference between overload and override?

What is the difference between overload and override?

What is Overloading and Overriding? When two or more methods in the same class have the same name but different parameters, it’s called Overloading. When the method signature (name and parameters) are the same in the superclass and the child class, it’s called Overriding.

What is overload and override?

Overloading occurs when two or more methods in one class have the same method name but different parameters. Overriding occurs when two methods have the same method name and parameters.

Can you override and overload at the same time?

Yes it is possible, you can overload and override a function in the same class but you would not be able to overload a function in two different classes as it is logically not possible.

What is the difference between overloading and overriding explain with example?

Method overriding is used to provide the specific implementation of the method that is already provided by its super class. Method overloading is performed within class. Method overriding occurs in two classes that have IS-A (inheritance) relationship. Method overloading is the example of compile time polymorphism.

Can overloaded methods have different return types?

Method overloading cannot be done by changing the return type of methods. The most important rule of method overloading is that two overloaded methods must have different parameters.

Why function overriding is used?

Function overriding helps us achieve runtime polymorphism. It enables programmers to perform the specific implementation of a function already used in the base class.

What is an example of overload?

An example of a program that uses the overload principle would be one that prescribes squatting a prescribed weight for five sets for one week, moving to squatting a slightly heavier load for five sets the next week, and progressively increasing the loads each subsequent week.

Can overloaded methods be overridden *?

Yes, we can override a method which is overloaded in super class.

What are the rules for overloading?

Rules for operator overloading

  • Only built-in operators can be overloaded.
  • Arity of the operators cannot be changed.
  • Precedence and associativity of the operators cannot be changed.
  • Overloaded operators cannot have default arguments except the function call operator () which can have default arguments.

Can we overload main method?

Yes, We can overload the main method in java but JVM only calls the original main method, it will never call our overloaded main method.

Can we overload final method?

Yes, overloading a final method is perfectly legitimate.

What’s the difference between method overriding and method overloading?

Method Overloading is done in a single class in which one class having different definitions of a method. Method Overriding is done between two classes having an IS-A (Inheritance) relationship between them. Method Overloading is done at compile-time, and hence it is known as Compile time Polymorphism.

What’s the difference between overloading and binding in C?

In overloading, multiple methods have the same name but with different parameters. The parameters can be of different types. The methods can also have a different number of parameters. Method overloading occurs in the same class. The binding of overloaded methods to the definition happens at compile time. Refer the below C# program.

Can a method be overloaded in both parent and child classes?

The return type of a method can be the same or different in the case of Method Overloading. It does not matter at all. The return type of a method needs to be the same in both parent and child class in the case of Method Overriding. Static methods can be overloaded, i.e. we can have different static methods overloaded in the same class.

Is the return type the same in method overriding?

Return type can be same or different in method overloading. But you must have to change the parameter. Return type must be same or covariant in method overriding.