[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] labels  2nd  [See also identifiers] last-in, first-out (LIFO) collection  [See stacks] LastIndexOf() method     System.Array class      System.String class  Length property     System.Array class  2nd      System.String class  2nd  Length() method, StringBuilder class  less than operator (<)  less than or equal to operator (<=)  2nd  Liberty Associates web site  LIFO (last-in, first-out) collection  [See stacks] literals  [See also string literals]     constants      in regular expressions  local scope  local variables  2nd  Locals window, VS.NET debugger  lock statement  logical operators      overloading      precedence of  long type  2nd  looping  2nd  [See also branching]3rd      do ... while statement      for statement      foreach statement      forever loop  2nd      goto statement      while statement