public static getMaxProfit(List<double> stockPrices) {
        int size = stockPrices.size();
        double localMin = stockPrices.indexOf(0), localMax;
        double profit = 0, buy = 0;
        boolean transactionPhase = true;
        for(int i = 1; i < size; i++) {
            if(transactionPhase) {
                if (localMin > stockPrices.indexOf(i)) {
                    localMin = stockPrices.indexOf(i);
                } else if (localMin < stockPrices.indexOf(i)) {
                    buy = localMin;
                    transactionPhase = false;
                    localMax = stockPrices.indexOf(i);
                }
            } else {
                if (localMax < stockPrices.indexOf(i)) {
                    localMax = stockPrices.indexOf(i);
                    if(i == size -1) {
                        profit = profit + (localMax - buy);
                    }
                } else if ((localMax > stockPrices.indexOf(i))) {
                    profit = profit + (localMax - buy);
                    transactionPhase = true;
                    buy = stockPrices.indexOf(i);

                }
            }
        }
    }