Use JAVA language to write it.

It must receive input from users through command line arguments in Linux

For example, when user type this in Linux

./command foo bar

It must output exactly:

2 bar foo 

When the user typed

a b "test input" c d e

output is:

6 e d c test input b a

(no quote marks and total 6, not 7)

Rember it must be run in Linux, not eclipse or other IDE