Is it possible to replace the ArrayList of Student in the Course Class with a HashSet collection and why? If yes, show a screenshot of the implementation. (You should explain in your own words the answer

,Write a program to implement hashcode and equals.

import java.util.HashSet; import java.util.Set; // Define a class named LinearSearchSet public class LinearSearchSet {     // Define a method named linearSearch that takes in a Set and an integer target     // as parameters     public static boolean linearSearch(Set<Integer> set, int target) {         // Iterate over all elements in the Set         for () {             // Check if the current value is equal to the target             if () {                 // If so, return true             }         }         // If the target was not found, return false     }     // Define the main method     public static void main(String[] args) {         // Create a HashSet of integers and populate integer values         Set<Integer> numbers = new HashSet<>();         // Define the target to search for         numbers.add(3);         numbers.add(6);         numbers.add(2);         numbers.add(9);         numbers.add(11);         // Call the linearSearch method with the set…

Modify the simulate() method in the Simulator class to work with the revised interface of ParkingLot and the new peek() method in Queue. In addition, implement the getIncomingQueueSize() method of Simulator using the size() method of Queue. The getIncomingQueueSize() is going to be used in the CapacityOptimizer class (next task) to determine the size of the incoming queue after a simulation run.   CODE TO MODIFY IN JAVA: public class Simulator { /** * Length of car plate numbers */ public static final int PLATE_NUM_LENGTH = 3; /** * Number of seconds in one hour */ public static final int NUM_SECONDS_IN_1H = 3600; /** * Maximum duration a car can be parked in the lot */ public static final int MAX_PARKING_DURATION = 8 * NUM_SECONDS_IN_1H; /** * Total duration of the simulation in (simulated) seconds */ public static final int SIMULATION_DURATION = 24 * NUM_SECONDS_IN_1H; /** * The probability distribution for a car leaving the lot based on the duration * that the car has been parked in…