Socket Programming in JAVA

Java Socket programing Need a prompt that asked to login or register If registered clicked -input for username -input for password -input for first and last name -input for age if login clicked -input for username -input for password From there I need this information to go to a client and server. Client > takes information and if registered clicked it saves it to a main text file that the server will create Server> takes infromation and checks the main text file if username and password are correct and notifies client that useris logged in. If not gives message back to client(wrong password), if username is not there tells user that "username is not created please register"