Hello World!
How the way people code “Hello World” varies dependingon their age and job:
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 <<(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);
}
System Administrator
#include <stdio.h>
#include <stdlib.h>
main()
{
char *tmp;
int i=0;
/* on y va bourin */
tmp=(char *)malloc(1024*sizeof(char));
while (tmp[i]="Hello Wolrd"[i++]);
/* Ooopps y'a une 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
Other humor in the GNU HumorCollection.
Disclaimer
The joke on this page was obtained from theFSF's email archives of the GNUProject.
The Free Software Foundation claims no copyright on this joke.