@@ -0,0 +1,322 @@
+package ru.matevosyan;%0A%0Aimport java.util.TreeSet;%0A%0A/**%0A * Created by Admin on 07.05.2017.%0A */%0Apublic class DepartmentCode %7B%0A    private final TreeSet%3CString%3E code;%0A%0A    public DepartmentCode(final TreeSet%3CString%3E code) %7B%0A        this.code = code;%0A    %7D%0A%0A    public TreeSet%3CString%3E getCode() %7B%0A        return code;%0A    %7D%0A%7D%0A

add DepartmentCode.java