Question

How many ways are there to let the code output itself?

For example, write the code below,

public class Test {    public static void main(String[] args)    {       // some code    } } 

to output itself

public class Test {    public static void main(String[] args)    {       // some code    } } 

(Any programming language is accepted)

EDIT This question has been answered in the historical posts, search ‘quine’ or check out https://stackoverflow.com/search?q=quine

Answer 1

This is called a programming quine, and has been extensively discussed on SO:

https://stackoverflow.com/search?q=quine

Also see

http://en.wikipedia.org/wiki/Quine_(computing)

http://www.nyx.net/~gthompso/quine.htm

http://www.madore.org/~david/computers/quine.html

-Adam