How To Calculate Chaikin Money Flow (CMF) in Java?

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public static double chaikinMoneyFlow(ArrayList<Double> highs, ArrayList<Double> lows, ArrayList<Double> closes, ArrayList<Double> volumes) {
    
    int period = 20; // Set the period for the CMF calculation
    
    // Initialize variables for the CMF calculation
    double sumMoneyFlowVolume = 0;
    double sumVolume = 0;
    
    // Calculate the Money Flow Multiplier (MF Multiplier)
    ArrayList<Double> mfMultipliers = new ArrayList<>();
    for(int i = 1; i < closes.size(); i++) {
        double mfMultiplier = ((closes.get(i) - lows.get(i)) - (highs.get(i) - closes.get(i))) / (highs.get(i) - lows.get(i));
        mfMultipliers.add(mfMultiplier);
    }
    
    // Calculate the Money Flow Volume
    ArrayList<Double> moneyFlowVolume = new ArrayList<>();
    for(int i = 0; i < period; i++) {
        sumMoneyFlowVolume += mfMultipliers.get(i) * volumes.get(i);
        sumVolume += volumes.get(i);
        moneyFlowVolume.add(sumMoneyFlowVolume / sumVolume);
    }
    
    // Calculate Chaikin Money Flow (CMF)
    double cmf = moneyFlowVolume.get(moneyFlowVolume.size() - 1);
    
    return cmf;
}

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public static void main(String[] args) {
    ArrayList<Double> highs = new ArrayList<>();
    highs.add(10.50);
    highs.add(11.20);
    // Add more high prices
    
    ArrayList<Double> lows = new ArrayList<>();
    lows.add(10.10);
    lows.add(10.80);
    // Add more low prices
    
    ArrayList<Double> closes = new ArrayList<>();
    closes.add(10.30);
    closes.add(11.10);
    // Add more closing prices
    
    ArrayList<Double> volumes = new ArrayList<>();
    volumes.add(1000.0);
    volumes.add(1500.0);
    // Add more volume data
    
    double cmf = chaikinMoneyFlow(highs, lows, closes, volumes);
    
    System.out.println("Chaikin Money Flow: " + cmf);
}