Sorry to have to agree with you but yes, your code is not at all well written. You keep creating new scanner objects, when you only need one. Your Client class just will not do what you expect, or anything else useful. I did not bother to look too hard at the rest.
You need to stop and do some serious study and learn how to create classes, and lists of objects, at minimum. Take a look at
The Java™ Tutorials[
^] for some really useful resources.