using System;
using System.Collections.Generic;
using System.Text;
class Program
{
static void Main(string[] args)
{
// Set initial string value.
string s1 = "This is my string.";
Console.WriteLine("s1 = {0}", s1);
// Uppercase the s1?
string upperString = s1.ToUpper();
Console.WriteLine("upperString = {0}", upperString);
// Nope! s1 is in the same format!
Console.WriteLine("s1 = {0}", s1);
string s2 = "My other string";
s2 = "New string value";
}
}