Java File Handling/Reading

Guys,

java bullshit examplefile.txt

Basicly I need to receive a file as an input, and then, I have to read the first line.

How do I do that if I don't know the file's name. (Any file could be thrown in, and I have to read it).

Thanks, /prog/

>>3
stfu. the girl didn't even posted her full work. it's okay to help others.