feat: add authors

ArrivalEvent.java

@@ -1,4 +1,8 @@
 
+/**
+ * @author Yadunand Prem
+ * @version CS2030S AY22/23 Semester 2
+ */
 class ArrivalEvent extends BaseShopEvent {
 
     double serviceTime;

BaseShopEvent.java

@@ -4,8 +4,8 @@
  * simulation. Your task is to replace this
  * class with new classes, following proper OOP principles.
  *
- * @author Wei Tsang
- * @version CS2030S AY21/22 Semester 2
+ * @author Yadunand Prem
+ * @version CS2030S AY22/23 Semester 2
  */
 
 abstract class BaseShopEvent extends Event {

Customer.java

@@ -1,3 +1,7 @@
+/**
+ * @author Yadunand Prem
+ * @version CS2030S AY22/23 Semester 2
+ */
 public class Customer {
     final private int id;
 

DepartureEvent.java

@@ -1,4 +1,7 @@
-
+/**
+ * @author Yadunand Prem
+ * @version CS2030S AY22/23 Semester 2
+ */
 class DepartureEvent extends BaseShopEvent {
 
     public DepartureEvent(double time, Customer customer, Shop shop) {

Event.java

@@ -9,8 +9,8 @@
  * the Comparable interface so that a PriorityQueue can
  * arrange the events in the order of event time.
  * 
- * @author Wei Tsang
- * @version CS2030S AY21/22 Semester 2
+ * @author Yadunand Prem
+ * @version CS2030S AY22/23 Semester 2
  */
 abstract class Event implements Comparable<Event> {
   /** The time this event occurs in the simulation. */

Lab1.java

@@ -3,8 +3,8 @@ import java.util.Scanner;
 /**
  * The main class for CS2030S Lab 1.
  *
- * @author Wei Tsang
- * @version CS2030S AY21/22 Semester 2
+ * @author Yadunand Prem
+ * @version CS2030S AY22/23 Semester 2
  */
 class Lab1 {
   public static void main(String[] args) {
@@ -12,7 +12,7 @@ class Lab1 {
     // Create a scanner to read from standard input.
     Scanner sc = new Scanner(System.in);
 
-    // Create a simulation.  The ShopSimulation 
+    // Create a simulation. The ShopSimulation
     // constructor will read the simulation parameters
     // and initial events using the scanner.
     Simulation simulation = new ShopSimulation(sc);

ServiceBeginEvent.java

@@ -1,4 +1,7 @@
-
+/**
+ * @author Yadunand Prem
+ * @version CS2030S AY22/23 Semester 2
+ */
 class ServiceBeginEvent extends BaseShopEvent {
 
     double serviceTime;
@@ -18,7 +21,7 @@ class ServiceBeginEvent extends BaseShopEvent {
 
     @Override
     public Event[] simulate() {
-        this.counter.setAvailable(false);
+        this.counter.occupy();
         double endTime = this.getTime() + this.serviceTime;
         return new Event[] {
                 new ServiceEndEvent(endTime, this.customer, this.shop, this.counter) };

ServiceEndEvent.java

@@ -1,4 +1,7 @@
-
+/**
+ * @author Yadunand Prem
+ * @version CS2030S AY22/23 Semester 2
+ */
 class ServiceEndEvent extends BaseShopEvent {
 
     ShopCounter counter;
@@ -16,7 +19,7 @@ class ServiceEndEvent extends BaseShopEvent {
 
     @Override
     public Event[] simulate() {
-        this.counter.setAvailable(true);
+        this.counter.free();
         return new Event[] { new DepartureEvent(this.getTime(), customer, shop) };
     }
 }

Shop.java

@@ -1,3 +1,7 @@
+/**
+ * @author Yadunand Prem
+ * @version CS2030S AY22/23 Semester 2
+ */
 public class Shop {
     private ShopCounter[] counters;
 

ShopCounter.java

@@ -1,3 +1,7 @@
+/**
+ * @author Yadunand Prem
+ * @version CS2030S AY22/23 Semester 2
+ */
 public class ShopCounter {
     final private int id;
     private boolean available;
@@ -6,8 +10,12 @@ public class ShopCounter {
         return available;
     }
 
-    public void setAvailable(boolean available) {
-        this.available = available;
+    public void occupy() {
+        this.available = false;
+    }
+
+    public void free() {
+        this.available = true;
     }
 
     public ShopCounter(int id) {

ShopSimulation.java

@@ -3,8 +3,8 @@ import java.util.Scanner;
 /**
  * This class implements a shop simulation.
  *
- * @author Wei Tsang
- * @version CS2030S AY21/22 Semester 2
+ * @author Yadunand Prem
+ * @version CS2030S AY22/23 Semester 2
  */
 class ShopSimulation extends Simulation {
 

Simulation.java

@@ -1,11 +1,11 @@
 /**
  * This class is a general abstract class that
- * encapsulates a simulation.  To implement a
+ * encapsulates a simulation. To implement a
  * simulation, inherit from this class and implement
  * the `getInitialEvents` method.
  *
- * @author Wei Tsang
- * @version CS2030S AY21/22 Semester 2
+ * @author Yadunand Prem
+ * @version CS2030S AY22/23 Semester 2
  */
 abstract class Simulation {
   /**

Simulator.java

@@ -6,15 +6,15 @@ import java.util.PriorityQueue;
  * It runs through the events and simulates each one until
  * the queue is empty.
  *
- * @author Wei Tsang
- * @version CS2030S AY21/22 Semester 2
+ * @author Yadunand Prem
+ * @version CS2030S AY22/23 Semester 2
  */
 public class Simulator {
   /** The event queue. */
   private final PriorityQueue<Event> events;
 
   /**
-   * The constructor for a simulator.  It takes in
+   * The constructor for a simulator. It takes in
    * a simulation as an argument, and calls the
    * getInitialEvents method of that simulation to
    * initialize the event queue.
@@ -30,9 +30,9 @@ public class Simulator {
 
   /**
    * Run the simulation until no more events is in
-   * the queue.  For each event in the queue (in
+   * the queue. For each event in the queue (in
    * increasing order of time), print out its string
-   * representation, then simulate it.  If the 
+   * representation, then simulate it. If the
    * simulation returns one or more events, add them
    * to the queue, and repeat.
    */