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High school
|
10 PRINT "HELLO WORLD"
20 END
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|---|
|
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%gt
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%gt
#include <string.h%gt
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 %lt;stdio.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
|
|
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
To: ^X ^F ^C
% help mail
help: Command not found.
% damn!
!: Event unrecognized
% logout
|