www.cyberslayer.co.uk

 


     The Evolution of a Programmer
     -----------------------------

      High School/Jr.High
      ===================
          10 PRINT "HELLO WORLD"
          20 END

      First year in College
      =====================
           program Hello(input, output)
            begin
               writeln('Hello World')
            end.

      Senior year in College
      ======================
           (defun hello
            (print
             (cons 'Hello (list 'World))))

      New professional
      ================
           #include 
          void main(void)
           {
            char *message[] = {"Hello ", "World"};
             int i;

             for(i = 0; i < 2; ++i)
               printf("%s", message[i]);
             printf("\n");
          }

      Seasoned professional
      =====================
         #include 
          #include 
           class string
          {
           private:
            int size;
             char *ptr;
           public:
             string() : size(0), ptr(new char('\0')) {}
             string(const string &s) : size(s.size)
            {
             ptr = new char[size + 1];
             strcpy(ptr, s.ptr);
             }
             }
             ~string()
            {
             delete [] ptr;
             }
             friend ostream &operator <<(ostream &, const string &);
             string &operator=(const char *);
            };
           ostream &operator<<(ostream &stream, const string &s)
           {
             return(stream << s.ptr);
           }
           string &string::operator=(const char *chrs)
           {
            if (this != &chrs)
             {
              delete [] ptr;
            size = strlen(chrs);
            ptr = new char[size + 1];
               strcpy(ptr, chrs);
            }
             return(*this);
          }
           int main()
           {

             string str;
             str = "Hello World";
             cout << str << endl;
             return(0);
           }

      Apprentice Hacker
      ===================
      #!/usr/local/bin/perl
      $msg="Hello, world.\n";
      if ($#ARGV >= 0) {
        while(defined($arg=shift(@ARGV))) {
          $outfilename = $arg;
          open(FILE, ">" . $outfilename) || die "Can't write $arg: $!\n";
          print (FILE $msg);
          close(FILE) || die "Can't close $arg: $!\n";
        }
      } else {
        print ($msg);
      }
      1;

      Experienced Hacker
      ===================
      #include 
      #define S "Hello, World\n"
      main(){exit(printf(S) == strlen(S) ? 0 : 1);}

      Seasoned Hacker
      ===================
      % cc -o a.out ~/src/misc/hw/hw.c
      % a.out

      Guru Hacker
      ===================
      % cat
      Hello, world.
      ^D

      New Manager
      ===================
      10 PRINT "HELLO WORLD"
      20 END

      Middle Manager
      ===================
      mail -s "Hello, world." bob@b12
      Bob, could you please write me a program that prints "Hello, world."?
      I need it by tomorrow.
      ^D

      Senior Manager
      ===================
      % zmail jim
      I need a "Hello, world." program by this afternoon.

      Chief Executive
      ===================
      % letter
      letter: Command not found.
      % mail
      % help mail
      help: Command not found.
      % damn!
      !: Event unrecognized
      % logout