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   Home » C# Language » ToString() & get()
       
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Maha
posted 816 posts
since Aug 13, 2006 
from

ToString() & get()

  Posted on: 11 Feb 2012       
In this example program if we replaced ToString() method by get() method same result can be obtained. So that what is the purpose of using ToString() method.

using System;
class Customer
{
protected string name;
protected double balanceDue;

public Customer()
{
name = "Maha";
balanceDue = 0;
}
}
class PreferredCustomer : Customer
{
private double discountRate;
private int sinceYear;

public PreferredCustomer()
{
discountRate = 0.08;
sinceYear = 1997;
}
public new string ToString()
{
return name + " " + balanceDue + " " + discountRate + " " + sinceYear;
}
}
class DemoPreferredCustomerConstructor2
{
public static void Main()
{
PreferredCustomer pc = new PreferredCustomer();
Console.WriteLine("The preferred customer is {0}", pc.ToString());

Console.ReadKey();
}
}
/*
The preferred customer is Maha 0 0.08 1997
*/

Vulpes
posted  5419 posts
since  Feb 28, 2011 
from 

 Re: ToString() & get()
  Posted on: 11 Feb 2012        0  
The program is probably just demonstrating that you can hide a virtual method - hence the use of the 'new' keyword.

It is difficult to see why you'd want to when you can override it instead.

If you did use get() rather than ToString(), then the latter would still be available (as a result of inheritance) but would return the runtime type of the variable to which it was applied.  So pc.ToString() would return the string "PreferredCustomer" because 'pc' refers to an object of that type.

Maha
posted  816 posts
since  Aug 13, 2006 
from 

 Re: ToString() & get()
  Posted on: 11 Feb 2012        0  
Thank you
       
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