C# program to demonstrate the example of multilevel inheritance with method overriding

Multilevel inheritance with method overriding in C#: Here, we are going to learn about the multilevel inheritance with method overriding and its C# implementation.
Submitted by Nidhi, on August 20, 2020

Here we will create a C# program to demonstrate the multilevel inheritance with the virtual method in C#. We will create Human, Man, and Employee classes to implement multilevel inheritance with method overriding.

Program:

The source code to demonstrate the multi-level inheritance with method overriding in C# is given below. The given program is compiled and executed successfully on Microsoft Visual Studio.

//Program to demonstrate the multilevel inheritance 
//with the virtual method in C#.

using System;

class Human
{
    public string name;
    public Human(string na)
    {
        name = na;
    }
    public virtual void printInfo()
    {
        Console.WriteLine("Name: " + name);
    }
}

class Man : Human
{
    public int age;
    public Man(int age, string name)
        : base(name)
    {
        this.age = age;
    }

    public override void printInfo()
    {
        base.printInfo();
        Console.WriteLine("Age: " + age);
    }
}

class Employee : Man
{
    public int emp_id;
    public int emp_salary;

    public Employee(int id, int salary, string name, int age)
        : base(age, name)
    {
        emp_id = id;
        emp_salary = salary;
    }

    public override void printInfo()
    {
        Console.WriteLine("Emp ID:      " + emp_id);
        base.printInfo();
        Console.WriteLine("Emp Salary:  " + emp_salary);   
    }
    
    static void Main(string[] args)
    {
        Employee emp = new Employee(101, 1000, "Rahul", 31);
        emp.printInfo();
    }
}

Output:

Emp ID:      101
Name: Rahul
Age: 31
Emp Salary:  1000
Press any key to continue . . .

Explanation:

In the above program, we created three classes Human, Man, and Employee. Here we inherited Human class into Man class and then Man class into Employee class.  Every class contains a constructor to initialize data members and printInfo() method. Here we override printInfo() method in Man and Employee class. 

The Employee class also contain the Main() method. In the Main() method we created object emp of Employee class and call printInfo() method that will print.






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