Arraylist FRQ Homework

public class WeatherData {

    private ArrayList<Double> temperatures;

    public void cleanData (double lower, double upper) {
        /* to be implemented in Part A */ 
    }

    public int longest HeatWave () {
        /* to be implemented in Part B */
    }
}

Part A

import java.util.ArrayList;

public class WeatherData {

    // Instance variable to store temperature data as a list of doubles.
    private ArrayList<Double> temperatures;

    /**
     * Cleans the temperature data by removing any values that fall outside 
     * the specified range [lower, upper].
     * 
     * @param lower the inclusive lower bound of valid temperatures
     * @param upper the inclusive upper bound of valid temperatures
     */
    public void cleanData(double lower, double upper) {
        // Iterate through the temperature list in reverse to avoid skipping elements during removal.
        for (int i = temperatures.size() - 1; i >= 0; i--) {
            // Remove any temperature that is outside the specified range.
            if (temperatures.get(i) < lower || temperatures.get(i) > upper) {
                temperatures.remove(i);
            }
        }
    }

    /**
     * Determines the longest heat wave, defined as the longest sequence of consecutive 
     * days with temperatures above the specified threshold.
     * 
     * @param threshold the temperature threshold to define a heat wave
     * @return the length of the longest heat wave
     */
    public int longestHeatWave(double threshold) {
        int numOfHeatWaveDays = 0;  // Tracks the current streak of heat wave days.
        int maxHeatWaveDays = 0;   // Tracks the longest streak of heat wave days.

        // Iterate through each temperature in the list.
        for (double temp : temperatures) {
            if (temp > threshold) {
                // Increment the current streak if the temperature exceeds the threshold.
                numOfHeatWaveDays++;
                // Update the longest streak if the current streak is longer.
                if (numOfHeatWaveDays > maxHeatWaveDays) {
                    maxHeatWaveDays = numOfHeatWaveDays;
                }
            } else {
                // Reset the current streak if the temperature does not exceed the threshold.
                numOfHeatWaveDays = 0;
            }
        }
        // Return the length of the longest heat wave.
        return maxHeatWaveDays;
    }
}