public static boolean doesExchangeUseReverseRates(String shortExchangeName){
  if (shortExchangeName == null) {
    throw new IllegalArgumentException("Exchange name cannot be null");
  }
  return BITCOIN_CHARTS_EXCHANGE_NAME.equals(shortExchangeName);
}

public static boolean doesExchangeUseReverseRates ( String shortExchangeName ) { if ( shortExchangeName == null ) { throw new IllegalArgumentException ( "Exchange name cannot be null" ) ; } return BITCOIN_CHARTS_EXCHANGE_NAME . equals ( shortExchangeName ) ; }
exchanges normally use a currencypair with btc as the base currency and the other as the countercurrency . e . g . btcusd = 20 i . e 1 btc is worth 20 usd . some exchanges use reverse rates i . e they quote usdbtc = 20 .
