public static BitfinexTickerSymbol ticker ( final String currency , final String profitCurrency ) { final String currencyNonNull = Objects . requireNonNull ( currency ) . toUpperCase ( ) ; final String profitCurrencyNonNull = Objects . requireNonNull ( profitCurrency ) . toUpperCase ( ) ; return ticker ( BitfinexCurrencyPair . of ( currencyNonNull , profitCurrencyNonNull ) ) ; }
returns symbol for ticker channel