Determine count char a in sentence

Category: Homework in Pascal

Author: Juraj Pupák
Program: Pismenoa.pas
File exe: Pismenoa.exe

{ PISMENOA.PAS                                                      }
{ Zisti kolkokrat sa vo vete nachadza pismeno A.                    }
{                                                                   }
{ Author: Juraj Pupak                                               }
{ Date  : 27.10.2006                           http://www.trsek.com }
 
program Pismeno_a;
uses crt;
var
  Cstr_veta : string;
  Cstr_1 : string;
  dlzka_vety : integer;
  index : integer;
  pocet_pismen_a : integer;
 
begin
  clrscr;
  writeln('Zadaj vetu ukoncenu bodkou');
  readln(Cstr_veta);
  clrscr;
  dlzka_vety := length(Cstr_veta);
  For index := 1 To dlzka_vety Do
    begin
      Cstr_1 := Cstr_veta[index];
      IF Cstr_1 = 'a' THEN
        begin
          pocet_pismen_a := pocet_pismen_a + 1;
        end;
    end;
  writeln('Pocet pismen "a" sa vo vete nachadza ',pocet_pismen_a,' krat');
  readln;
end.