using System;

namespace Example45A
{
	/// <summary>
	/// Summary description for Class1.
	/// </summary>
	class Class1
	{
		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main(string[] args)
		{
			String s = " C# lets us use objects.   ";

			Console.WriteLine(s);

			Console.WriteLine("s.Length= " + s.Length);

			Console.WriteLine(s.ToLower());

			Console.WriteLine(s.ToUpper());

			Console.WriteLine(s.Trim());

			String t = s.Trim();

			Console.WriteLine("t.Length=" + t.Length);

			Console.WriteLine("s.SubString(2,5)= " + s.Substring(2,5));

			Console.WriteLine("s.IndexOf('#')= " + s.IndexOf('#'));

			Console.WriteLine("s.IndexOf(\"lets\") = " + s.IndexOf("lets"));

			Console.WriteLine("s.Replace(\"us\") = " + s.Replace("us", "them"));

			double d = 3.14159265;

			String w = String.Format("The price is {0:C}", d);

			Console.WriteLine(w);
		}
	}
}