OOPS-Method hiding/Overriding

Sree

Hi All,

I have gone through all articles in this community.

Can anyone practically explain the difference between method hiding/overriding in OOPS.

Theoritically got idea from this community queries/Answers. But need practically.

Thanks in Advance,
Sree

5 Replies

Know the answer? Post it — somebody with the same question will find it here.

satheesh d4y ago
MethodHiding

class Employee
{

public virtual void print()

{

Console.WriteLine("Employee");
}

}

class FullTimeEmployee:Employee

{

public new void print()

{

Console.WriteLine("Full Time");

}

}

static void Main()

{

FullTimeEmployee FTE = new FullTimeEmployee();

FTE.print();

}

Here the Output will be “Full Time”. The Fulltime Employee class is inherited from Employee class. We created the instance of class with Fulltime Employee class, So the print method inside this class will be executed. This class hides the Employee class print method. This is called method hiding. If the hiding is intended then use new keyword is used in the print method.

Method Overriding

class Employee

{

public virtual void print()

{

Console.WriteLine("Employee");
}

}

class FullTimeEmployee:Employee

{

public Override void print()

{

Console.WriteLine("Full Time");

}

}

This is the example for method overriding. Method Overriding is a technique that allows the invoking of functions from another class (base class) in the derived class. Creating a method in the derived class with the same signature as a method in the base class is called as method overriding.
+1
Satya Karki4y ago
You can refer this article for clear understanding

https://www.geeksforgeeks.org/difference-between-method-overriding-and-method-hiding-in-c-sharp/
+2
Rijwan Ansari4y ago
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.
Sample example:
Method Overriding.
// C# program to illustrate the
// Method overriding concept
using System;

// Base class
class My_Parent {

    // virtual method
    public virtual void display()
    {
        Console.WriteLine("My new parent class.. !");
    }
}

// Derived class
class My_Child : My_Parent {

    // Here display method is overridden
    public override void display()
    {
        Console.WriteLine("My new child class.. !");
    }
}

class GFG {

    // Main Method
    public static void Main()
    {

        My_Parent obj;

        // Creating object of the base class
        obj = new My_Parent();

        // Invoking method of the base class
        obj.display();

        // Creating object of the derived class
        obj = new My_Child();

        // Invoking method of derived class
        obj.display();
    }
}
//Output
//My new parent class.. !
//My new child class.. !
In method hiding, you can redefine the method of the base class in the derived class by using the new keyword.
Example:
// C# program to illustrate the
// concept of method hiding
using System;

// Base Class
public class My_Parent {

    public void show()
    {
        Console.WriteLine("This is my parent class.");
    }
}

// Derived Class
public class My_Child : My_Parent {

    // Hide the method of base class
    // Using new keyword
    public new void show() {

        Console.WriteLine("This is my child class.");
    }
}

public class GFG {

    // Main method
    static public void Main()
    {

        // Creating the object of
        // the derived class
        My_Child obj = new My_Child();

        // Access the method of derived class
        obj.show();
    }
}
//Output
//This is my child class.
+3
Srinivasan Ramamoorthi4y ago
Check this article too, this explains in terms of memory and references

https://stackoverflow.com/questions/11046387/exact-difference-between-overriding-and-hiding
+1
Sachin Singh4y ago
here is really a good explaination, so instead writing the same thing again, i am pasting the url.
https://stackoverflow.com/questions/3838553/overriding-vs-method-hiding
+1