Example: C# Program to Find Area of Rectangle using Constructor

C
C++
C#
Java
Python
PHP
// C# Program to Find Area of Rectangle using Constructor
using System;

public class Rect {
    public float a, b;
    
    // It's the default constructor of the `Rect` class
    public Rect (float x, float y) {
        a=x;
        b=y;
    }
    
    // It will calculate the area of the rectangle
    public float Area() {
        return a * b;
    }
}

public class W3CW {
    // It's the driver function
    static public void Main (string[] args) {
        Console.WriteLine("Enter the length & width of the rectangle::\n");
        float length=Convert.ToInt32(Console.ReadLine());
        float width=Convert.ToInt32(Console.ReadLine());
        
        // It will create the instance of the `Rect` class
        Rect RectObj = new Rect(length, width);
        
        // It will print the final output
        Console.WriteLine("Area of the rectangle is: "+RectObj.Area()+" units");
    }
}