Question

Create a new project ‘Clocky’ - Create a ‘ClockAlarm’ class Include 1 member – a List alarmTimes Create an accessor and mutator Create a method addAlarmTime which adds an alarm time to your list Create a method deleteAlarmTIme which removes an alarm time from your list Create a method – displayAlarmTimes which prints all alarm times in the list - Create a ‘Clock’ class - include at least 2 members - one member of Clock class needs to be private ClockAlarm clockAlarm - one member is currentTime - create accessors, mutators - create a method setAlarmTime from the Clock class calls methods on the member clockAlarm - create a method removeAlarmTime from the Clock class calls methods on the member clockAlarm - create a method showAlarmTimes from the Clock class calls methods on the member clockAlarm - create two constructors of your Clock class – one which takes two parameters: alarmTime, currentTime, and sets the clock members with both Another constructor which takes only the currentTime & sets that member. - Create a TestHarness class containing a main which gets an instance of a Clock class. The key is having the methods of the Clock class modifying the members of the ClockAlarm class through the clockAlarm member of the Clock class. Set a few times and alarm times thru your Clock class methods and print out the results

Answer 1

/******************************ClockAlarm.java*************************/

import java.util.ArrayList;
import java.util.Iterator;

public class ClockAlarm {

   private ArrayList<String> alarmTimes;

   public ClockAlarm() {
       alarmTimes = new ArrayList<>();
   }

   public ArrayList<String> getAlarmTimes() {
       return alarmTimes;
   }

   public void setAlarmTimes(ArrayList<String> alarmTimes) {
       this.alarmTimes = alarmTimes;
   }

   public void addAlarmTime(String alarmTime) {

       alarmTimes.add(alarmTime);
   }

   public void removeAlarmTime(String alarmTime) {

       Iterator<String> itr = alarmTimes.iterator();
       int flag = 0;
       while (itr.hasNext()) {

          
           if (itr.next().equalsIgnoreCase(alarmTime)) {
               flag = 1;
               itr.remove();

           }

       }
       if (flag == 0) {

           System.out.println("No alarm found!");
       }
   }

   public void displayAlarmTimes() {

       for (String string : alarmTimes) {

           System.out.println(string);
       }
   }
}

/************************************Clock.java*************************/

public class Clock {

   private ClockAlarm clockAlarm;
   private String currentTime;

   public Clock(ClockAlarm clockAlarm, String currentTime) {
       super();
       this.clockAlarm = clockAlarm;
       this.currentTime = currentTime;
   }

   public Clock(String currentTime) {
       super();
       this.currentTime = currentTime;
       clockAlarm = new ClockAlarm();
   }

   public ClockAlarm getClockAlarm() {
       return clockAlarm;
   }

   public void setClockAlarm(ClockAlarm clockAlarm) {
       this.clockAlarm = clockAlarm;
   }

   public String getCurrentTime() {
       return currentTime;
   }

   public void setCurrentTime(String currentTime) {
       this.currentTime = currentTime;
   }

   public void setAlarmTime(String alarmTime) {

       clockAlarm.addAlarmTime(alarmTime);
   }

   public void removeAlarmTime(String alarmTime) {

       clockAlarm.removeAlarmTime(alarmTime);
   }

   public void showAlarmTimes() {

       clockAlarm.displayAlarmTimes();
   }

}
/******************************TestHarness.java*****************************/

public class TestHarness {

   public static void main(String[] args) {
      
       Clock clock = new Clock("5:50PM");
      
       clock.setAlarmTime("4:30AM");
       clock.setAlarmTime("2:00AM");
       clock.setAlarmTime("6:30PM");
      
       clock.showAlarmTimes();
      
       System.out.println("After removing alarm");
       clock.removeAlarmTime("6:30PM");
      
       clock.showAlarmTimes();
   }
}
/*******************output********************/

4:30AM
2:00AM
6:30PM
After removing alarm
4:30AM
2:00AM

Please let me know if you have any doubt or modify the answer, Thanks :)