Hello world!
Yes indeed! Hello World! I have often wondered where the "Hello world" sample style of programming has originated from. Most often seen in programming circles, there are countless "Hello World" programs available.
A quick Google search reveals that in 1972, a piece of literature written by Brian Kernighan, entitled, Tutorial Introduction to the Language B, shows us the first usage of the words "hello" and "world" used together in a structured statement.
main( ) {
extrn a, b, c;
putchar(a); putchar(b); putchar(c); putchar('!*n');
}
a 'hell';
b 'o, w';
c 'orld';
extrn a, b, c;
putchar(a); putchar(b); putchar(c); putchar('!*n');
}
a 'hell';
b 'o, w';
c 'orld';
Well, so much for the history lesson today. More about "Hello World" can be read here: http://en.wikipedia.org/wiki/Hello_world
vega Said:
There are variations in spirit, as well. Functional programming languages, like Lisp, ML and Haskell, tend to substitute a factorial program for Hello World,642-415 as the former emphasizes recursive techniques, which are a big part of functional programming, while the latter emphasizes I/O,70-271 which violates the spirit of pure functional programming by producing side effects.The Debian and Ubuntu Linux distributions provide the "hello world" program through the apt packaging system; this allows users to simply type "apt-get install hello" for the program to be installed, along with any software dependencies.JN0-350 While of itself useless, it serves as a sanity check and a simple example to newcomers of how to install a package.