[Java]Little game

Hiya..

Since this is a coder community thought someone could possibly help me with something I am working on.

What I want to do is....
Make a program that lets the users construct words from random letters and they should be controlled from a dictionary. For each part of random letters the program should show every possible word that can be made from these letters. So it is pretty much a game. It gives you for example "byota" as random letters and then the user has to find as many words as possible in those letters. For example boat. Then the user can exit the program and if the user does that, then the program will show all the alternatives that the randomletters could make.
If the user makes a wrong guess the program should end and show all the possible words.

Could anyone possible help me with this. I have done some in the program and I got some still missing.
Hope it is understandable


See below in attachements please. Help is apprecaited. i also have an Dictionary.txt file but did not attach it since the file is to big.