C# | Method returning an object

// C# program to illustrate the concept
// of the method returning an object
using System;

class Example {

    // Private data member
    private string str;

    // Method to set the value of str
    public void setdata(string s)
    {
        str = s;
    }

    // Method to display the value of str
    public void Display()
    {
        Console.WriteLine("String is: " + str);
    }

    // Method that return object
    public Example Astr(Example ex)
    {

        // Creating object of Example
        Example obj = new Example();

        // Adding the value of passed 
        // an object in the current object
        // and adding the sum in another object
        obj.str = str + ex.str;

        // Returning the object
        return obj;
    }
}

// Driver Class
class GFG {

    // Main method
    static void Main()
    {

        // Declaring objects of Example
        Example o1 = new Example();
        Example o2 = new Example();

        // Initialize the values to the objects
        o1.setdata("Geeks");
        o2.setdata("forGeeks");

        // Adding value of both objects
        // and the result will be
        // assigned into third object
        Example o3 = o1.Astr(o2);

        // Display the data
        o1.Display();
        o2.Display();
        o3.Display();
    }
}

// C# program to illustrate the 
// concept that how method returns 
// an object
using System;

class Triangle {

    // Data member of class
    int Base;
    int Height;

    // Constructor of class
    public Triangle(int b, int h)
    {
        Base = b;
        Height = h;
    }

    // Method return area of triangle
    public int Area()
    {
        return ((Base * Height) / 2);
    }

    // Method display the dimension of triangle
    public void Display()
    {
        Console.WriteLine("\nBase of the triangle is: " 
              + Base + "\nHeight of the triangle is:  " 
                                             + Height);
    }

    public Triangle newdimension(int d)
    {
        return new Triangle(Base * d, Height * d);
    }
}

class GFG {

    // Main method
    public static void Main()
    {

        // Creating and initializing object
        Triangle t1 = new Triangle(2, 8);

        // Display the dimensions and area of triangle
        Console.Write("Dimensions of Triangle is: ");
        t1.Display();
        Console.Write("Area of Triangle is: {0}", t1.Area());

        Console.WriteLine();
        Console.WriteLine();

        Triangle t2 = t1.newdimension(2);

        Console.Write("New Dimensions of Triangle is: ");
        t2.Display();
        Console.Write("New area of Triangle is: {0}", t2.Area());
    }
}