Main

public class MainClass {

    public static void main(String[] args){

        Menu menu = new Menu();
        boolean again = true;
        do {

            try {

            int chose= menu.chose();

                again=false;
                menu.menuCalcolator(chose);

       }
            catch(CustomException e){

             System.err.println(e + "prova");
           }

       catch(Exception e){

         System.err.println("Hai inserito un carattere errato. Riprova");

       }

    }while(again);

 }

}