public static void Main(string[] args)
{
WriteLine("Enter string");
MyString str = new MyString(ReadLine().ToCharArray());
WriteLine("ToUpper");
WriteLine(str.ToUpper());
WriteLine("ToLower");
WriteLine(str.ToLower());
WriteLine(@"Contains 'a'");
WriteLine(str.Contains('a'));
WriteLine(@"First index of 'a'");
WriteLine(str.FirstIndexOf('a'));
WriteLine(@"Last index of 'a'");
WriteLine(str.LastIndexOf('a'));
WriteLine("substring(3,6)");
WriteLine(str.Substring(3, 6));
WriteLine(@"replace('a','b')");
WriteLine(str.Replace('a', 'b'));
MyString[] split = new MyString[10];
WriteLine("split");
split = str.Split();
for (int i = 0; i < split.Length; i++)
{
WriteLine(split[i]);
}
ReadKey();
}