public void listTickers(){
        List<String> tickers = new ArrayList<String>();
        while(true){
            this.tUI.printGuide1();
            while(true){
                String s = this.inputScanner.nextLine();
                if(s.isEmpty()){
                    break;
                }
                tickers.add(s);            
            }
            if(this.stockSwag.validateTickersList()){
                break;
            }
            this.tUI.printTickerFail();
        }                                                    
    }