Object.MemberwiseClone Method in C# with Examples

// C# program to clone a object
// using MemberwiseClone() method
using System;

class GFG1 {

    public int val;

    public GFG1(int val)
    {
        this.val = val;
    }
    
}

class GFG2 {

    public GFG1 gg;

    public GFG2(int val)
    {
        // copy the reference of GFG1 to gg
        this.gg = new GFG1(val);   
    }

    // method for cloning
    public GFG2 Clone()
    {
        // return cloned value using
        // MemberwiseClone() method
        return ((GFG2)MemberwiseClone());
       
    }
}

// Driver Code
class Geek {


    // Main Method
    public static void Main()
    {
        // object of Class GFG2 with a value 3
        GFG2 g = new GFG2(3);
        
        // calling Clone()
        // "cc" has the reference of Clone()
        GFG2 cc = g.Clone();
       
        // accessing the main value
        Console.WriteLine("Value: " + g.gg.val);
        
        // accessing the cloned value
        Console.WriteLine("cloned value: " + cc.gg.val);
        
        // set a new value 
        // in variable "val"
        cc.gg.val = 6;
        
        // accessing the main value
        Console.WriteLine("\nValue: " + g.gg.val);
       
        // accessing the cloned value
        Console.WriteLine("cloned value: " + cc.gg.val);
        
    }
}

// C# program to demonstrate the 
// MemberwiseClone() method
using System;

public class GFG : ICloneable {

    // data members
    public string Name;
    public string Surname;
    public int Age;

    // constructor
    public GFG(string name, 
     string title, int age)
    {
        Name = name;
        Surname = title;
        Age = age;
    }

    // method for cloning
    public object Clone()
    {
        // return cloned value using
        // MemberwiseClone() method
        return MemberwiseClone();   
    }

    public override string ToString()
    {
        return string.Format("Name = {0}, Surname = {1}, Age {2}",
                                              Name, Surname, Age);
    }
}

// Driver Class
public class MainClass {

    // Main Method
    public static void Main()
    {
        GFG g = new GFG("ABC", "XYZ", 26);

        // calling Clone()
        // "cg" has reference of Clone()
        GFG cg = (GFG)g.Clone();
        
        Console.WriteLine("For Old values\nOriginal :");
        Console.WriteLine(g);

        Console.WriteLine("Cloned :");
        Console.WriteLine(cg);

        Console.WriteLine("\nAfter assigning new values");
        g.Name = "LMN";
        g.Surname = "QRS";
        g.Age = 13;

        Console.WriteLine("Original :");
        Console.WriteLine(g);

        Console.WriteLine("Cloned :");

        // prints the old cloned value
        Console.WriteLine(cg);
        
    }
}