using System;  

public class Address  

{  

    public string addressLine, city, state;  

    public Address(string addressLine, string city, string state)  

    {  

        this.addressLine = addressLine;  

        this.city = city;  

        this.state = state;  

    }  

}  

   public class Employee  

    {  

       public int id;  

       public string name;  

       public Address address;//Employee HAS-A Address  

       public Employee(int id, string name, Address address)  

       {  

           this.id = id;  

           this.name = name;  

           this.address = address;  

       }  

       public void display()  

       {  

           Console.WriteLine(id + " " + name + " " +   

             address.addressLine + " " + address.city + " " + address.state);  

       }  

   }  

   public class TestAggregation  

   {  

        public static void Main(string[] args)  

        {  

            Address a1=new Address("G-13, Sec-3","Noida","UP");  

            Employee e1 = new Employee(1,"Sonoo",a1);  

            e1.display();  

        }  

    }