Java Active Learning WorkBook: Scaffolded programming activities beyond the basics.

Subsection 5.4.1 Overview

  class DayTemperature{

    String day;
    double minTemp;
    double maxTemp;

    public DayTemperature(String day, double maxTemp, double minTemp){
        this.day = day;
        this.minTemp = minTemp;
        this.maxTemp = maxTemp;
    }

    public String toString(){

    }

    public double getAverageTemp(){

    }
}

  public class TemperatureAnalysis{
    //TO-DO: Initialize static ArrayList titled weekTemp that holds instances of DayTemperature

    public static void main(String[] args){
        printWeekTemp();
        printAverageWeeklyTemp();
        printHighestTemp();
        printLowestTemp();
    }

    public static void printWeekTemp(){
      
    }

    public static void printMedianTemp(){

    }

    public static void printAverageWeeklyTemp(){
    
    }

    public static void printHighestTemp(){
  
    }

    public static void printLowestTemp(){

    }

Subsection 5.4.2 Instructions

1. Implement the toString() method in DayTemperature

   • Expected Output: April 1, 2003 -- Min: -7.8°C, Max: 6.2°C
2. Implement the getAverageTemp() method in DayTemperature which calculates and returns the average temperature for the day (average of max and min temperatures)
3. Define a static ArrayList named weekTemp inside the TemperatureAnalysis class to store instances of DayTemperature
4. Implement the following methods inside TemperatureAnalysis:

   • printWeekTemp()method prints the temperatures recorded for each day of the week
   • printAverageWeeklyTemp() calculates and prints the average temperature for the entire week by summing up the daily averages (Hint: use getAverageTemp()) and dividing by the total number of days.
   • printHighestTemp() locates and prints the day with the highest temperature recorded for the week
   • printLowestTemp() locates and prints the day with the lowest temperature recorded for the week
5. Bonus: Implement a printMedianTemp() method that calculates and prints the median temperature of the week
   • Hint: Create a new ArrayList that stores Double in the method to store all individual temperatures (both min and max from each day). This approach simplifies finding the median as you can just sort this list and then pick the middle value. Remember to handle both even and odd numbers of elements differently:

     • For even numbers, average the two middle values
     • For odd numbers, take the middle value directly