.NET Framework Standard Library Annotated Reference, Volume 1: Base Class Library and Extended Numerics Library

Examples

Example 1

using System;

namespace Samples
{
  public class StringSample
  {
    public static void Main()
    {
      string s = "Hello World!";
      Console.WriteLine("\"{0}\".Length: {1}",
                        s, s.Length);
      Console.WriteLine("\"{0}\".ToUpper(): {1}",
                        s, s.ToUpper());
      Console.WriteLine("\"{0}\".ToLower(): {1}",
                        s, s.ToLower());
      char c = 'l';
      Console.WriteLine("\"{0}\".IndexOf({1}): {2}",
                        s, c, s.IndexOf(c));
      int i = 5;
      Console.WriteLine("\"{0}\".IndexOf({1}, {2}): {3}",
                        s, c, i, s.IndexOf(c,i));
      Console.WriteLine("\"{0}\".LastIndexOf({1}): {2}",
                        s, c, s.LastIndexOf(c));
    }
  }
}

The output is

 "Hello World!".Length: 12 "Hello World!".ToUpper(): HELLO WORLD! "Hello World!".ToLower(): hello world! "Hello World!".IndexOf(l): 2 "Hello World!".IndexOf(l, 5): 9 "Hello ...