Die Evolution eines Programmierers   High School / Jr. High 10 PRINT…

Die Evolution eines Programmierers
 
High School / Jr. High
10 PRINT „HELLO WORLD“
20 END
 
Erstes Jahr im College
program Hello(input, output)
begin
writeln(Hello World)
end.
 
Letztes Jahr im College
(defun hello
(print
(cons Hello (list World))))
 
Frisch im Berufsleben
#include
void main(void)
{
char *message[] = {„Hello „, „World“};
int i;
for(i = 0; i < 2; ++i)
printf(„%s“, message[i]);
printf(“
„);
}
 
Berufserfahren
#include
#include
class string
{
private:
int size;
char *ptr;
public:
string() : size(0), ptr(new char()) {}
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);
}
 
Hacker-Lehrling
#!/usr/local/bin/perl
$msg=“Hello, world.
„;
if ($#ARGV >= 0) {
while(defined($arg=shift(@ARGV))) {
$outfilename = $arg;
open(FILE, „>“ . $outfilename) || die „Cant write $arg: $!
„;
print (FILE $msg);
close(FILE) || die „Cant close $arg: $!
„;
}
} else {
print ($msg);
}
1;
 
erfahrener Hacker
#include
#define S „Hello, World
„
main(){exit(printf(S) == strlen(S) ? 0 : 1);}
 
Profi-Hacker
% cc -o a.out ~/src/misc/hw/hw.c
% a.out
 
Hacker-Guru
% cat
Hello, world.
^D
 
Neuer Manager
10 PRINT „HELLO WORLD“
20 END
 
normaler 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
 
erfahrener Manager
% zmail jim
I need a „Hello, world.“ program by this afternoon.
 
Der Chef persönlich
% letter
letter: Command not found.
% mail
To: ^X ^F ^C
% help mail
help: Command not found.
% damn!
!: Event unrecognized
% logout