Question

answer the questions throughout this program

public class Day implements Comparable {
   Private Boolean atWork;
   Private String Weather;
   Private int fuNumber;

}
public Day ( boolean Atwork, String Weather, int funNumber) {
   Atwork = Atwork;
   Weather = Weather;
   funNumber = funNumber;
}
//question 1: implement the getter and setter (mutatto of the funNumber data member. if the number is outside the range 0-10 make the fuNumebr=5;
public boolean equals (Day rhs) {
   // question 2: implement the following method. it determines if two Day objects are equalby comparing their three private data members. if all are the same, then they are equal
}
public int compareTo(Day rhs) {
   //question 3: compare this Day with the parameter Day first by funNumber and if two days have the same fuNumber, then by atWork. a day with the same funNumber butatworkis less than a non-work day.
}

Answer 1

Day.java

public class Day implements Comparable {

   // Data members
   private Boolean atwork;
   private String weather;
   private int funNumber;

   // Parameterized constructor
   // Set value of funNumber a/c to given condition
   public Day(boolean atwork, String weather, int funNumber) {
       this.atwork = atwork;
       this.weather = weather;
       setFunNumber(funNumber);
   }

   // Getter and setter for data members
   public Boolean getAtwork() {
       return atwork;
   }

   public void setAtwork(Boolean atwork) {
       this.atwork = atwork;
   }

   public String getWeather() {
       return weather;
   }

   public void setWeather(String weather) {
       this.weather = weather;
   }

   public int getFunNumber() {
       return funNumber;
   }

   public void setFunNumber(int funNumber) {
       if (funNumber < 0 || funNumber > 10) {
           this.funNumber = 5;
       } else {
           this.funNumber = funNumber;
       }
   }

   // In this method, compare all data members
   // if all are equal return true else false
   public boolean equals(Day rhs) {
       if (this.atwork == rhs.getAtwork() && this.weather.equals(rhs.getWeather())
               && this.funNumber == rhs.getFunNumber()) {
           return true;
       } else {
           return false;
       }
   }

   @Override
   public int compareTo(Object obj) {
       // Cast the object to Day
       Day rhs = (Day)obj;
       // -1 or a negative value means this day < rhs
       // 0 means both values are equal
       // 1 or a positive means this day > rhs
       if (this.funNumber == rhs.getFunNumber()) {
           if (this.atwork==true && rhs.getAtwork()==false) {
               return -1;
           } else if(this.atwork==false && rhs.getAtwork()==true){
               return 1;
           }else {
               return 0;
           }
       } else {
           return this.funNumber-rhs.funNumber;
       }
   }
}

DayTest.java - Class with the Main method to check Day class methods

public class DayTest {

   public static void main(String[] args) {
       // Create 3 day objects
       Day d1 = new Day(true,"cloudy",5);
       Day d2 = new Day(false,"hot",11);
       Day d3 = new Day(true,"cloudy",5);
      
       // Check some methods
       System.out.println("FunNumber of d2: "+d2.getFunNumber());
       System.out.println("Compare d1 to d2 result: "+d1.compareTo(d2));
      
       if(d1.equals(d3)) {
           System.out.println("d1 and d3 are equal");
       }else {
           System.out.println("d1 and d3 are not equal");
       }
   }
}

OUTPUT