public static void main(String args[])throws java.io.IOException{
        char choice, ignore;
        Help hlpobj = new Help();
        
        for(;;){
            do{
                hlpobj.showmenu();
                choice = (char) System.in.read();
                do{
                    ignore = (char) System.in.read();
                    
                }while(ignore != '\n');
                    
            }while( !hlpobj.isvalid(choice) );
             
            if(choice == 'q')
                break;
            System.out.println("\n");
            hlpobj.helpon(choice);
        }
        // TODO code application logic here
    }