using System;

public class Program

{

    public static void Main()

    {

        Student x= new Student();

        x.studentId=01;

        x.studentName="Mallik";

        Student y= x;

        Console.WriteLine("x original:"+ x.studentId+ " "+ x.studentName);

        Console.WriteLine("y original:"+ y.studentId+ " "+ y.studentName);

        Collections.firstFunc( x);

        Console.WriteLine("x impure:"+ x.studentId+ " "+ x.studentName);

        Console.WriteLine("y impure:"+ y.studentId+ " "+ y.studentName);

    }

}

​

​

public static class Collections

{

    public static void firstFunc( Student x)

    {

        Student y= x; 

        x= new Student();

        x.studentId= y.studentId+1;

        x.studentName= "wow";

    }

}

​

​

​

​

public class Customer

{

    public int customerId;

    public string customerName;

}

​

public class Student

{

    public int studentId;

    public string studentName;

}

​