string.String(char, int)

//StringCharRepeat.cs

using System;
namespace stringchar
{
class stringarray
{
public void char_repeat()
{
string s = new string('M', 3);
Console.WriteLine(s);
}
}
class test
{
/// The main entry point for the application.
[STAThread]
static void Main( string[] args )
{
stringarray ss = new stringarray();
ss.char_repeat();
} // end method Main
} // end class stringhandler
}