The way people code “Hello World”

You have to be pretty nerdy to understand this... and if you do understand this and think you aren't a geek, you are living in denial!

The way people code "Hello World" varies depending on their age and job (My favorites are the managers!!): 

 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 <stdio.h>
 void main(void)
 {
  char *message[] = {"Hello ", "World"};
  int i;
  for(i = 0; i < 2; ++i)
  printf("%s", message[i]);
  printf("\n");
 }

Seasoned professional
 #include <iostream.h>
 #include <string.h>
 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
   string &operator=(const char *);
 };
 ostream &operator
   return(stream
 }
 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
   return(0);
 }

System Administrator
 #include <stdio.h>
 #include <stdlib.h>
 main()
 {
  char *tmp;
  int i=0;
  /* We'll get there */
  tmp=(char *)malloc(1024*sizeof(char));
  while (tmp[i]="Hello Wolrd"[i++]);
  /* Ooopps there is an infusion ! */
  i=(int)tmp[8];
  tmp[8]=tmp[9];
  tmp[9]=(char)i;
  printf("%s\n",tmp);
 }

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 <stdio.h>
 #include <string.h>
 #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  Hello, world.

Guru Hacker
 % cat
 Hello, world.

New Manager (do you remember?)
 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
 To: ^X ^F ^C
 % help mail
 help: Command not found.
 % damn!
 !: Event unrecognized
 % logout

Research Scientist
      PROGRAM HELLO
      PRINT *, 'Hello World'
      END

Older research Scientist
      WRITE (6, 100)
    100 FORMAT (1H ,11HHELLO WORLD)
      CALL EXIT
      END