feat: add lab2 params

Lab2.java

@@ -0,0 +1,26 @@
+import java.util.Scanner;
+
+/**
+ * The main class for CS2030S Lab 1.
+ *
+ * @author Wei Tsang
+ * @version CS2030S AY20/21 Semester 2
+ */
+class Lab2 {
+  public static void main(String[] args) {
+
+    // Create a scanner to read from standard input.
+    Scanner sc = new Scanner(System.in);
+
+    // Create a simulation.  The ShopSimulation 
+    // constructor will read the simulation parameters 
+    // and initial events using the scanner.
+    Simulation simulation = new ShopSimulation(sc);
+
+    // Create a new simulator and run the simulation
+    new Simulator(simulation).run();
+
+    // Clean up the scanner.
+    sc.close();
+  }
+}

Makefile

@@ -2,9 +2,12 @@ CLASSES := $(wildcard *.java)
 
 default: classes
 
-Lab1:
+lab1:
 	java Lab1
 
+lab2:
+	java Lab2
+
 classes: $(CLASSES:.java=.class)
 
 %.class : %.java

Queue.java

@@ -0,0 +1,119 @@
+/**
+ * The Queue class implements a simple FIFO data structure
+ * with limited capacity that can store any Object instances.
+ * Not to be confused with java.util.Queue.
+ *
+ * @author Wei Tsang
+ * @version CS2030S AY21/22 Semester 2
+ */
+class Queue {
+  /** An array to store the items in the queue. */
+  private Object[] items;
+
+  /** Index of the first element in the queue. */
+  private int first;
+
+  /** Index of the last element in the queue. */
+  private int last;
+
+  /** Maximum size of the queue. */
+  private int maxSize;
+
+  /** Number of elements in the queue. */
+  private int len;
+
+  /**
+   * Constructor for a queue.
+   *
+   * @param size The maximum num of elements we can put in the queue.
+   */
+  public Queue(int size) {
+    this.maxSize = size;
+    this.items = new Object[size];
+    this.first = -1;
+    this.last = -1;
+    this.len = 0;
+  }
+
+  /**
+   * Add the object e into the queue.
+   *
+   * @param e The item to put in the queue.
+   * @return false if the queue is full; true if e is added successfully.
+   */
+  public boolean enq(Object e) {
+    if (this.isFull()) {
+      return false;
+    }
+    if (this.isEmpty()) {
+      this.first = 0;
+      this.last = 0;
+    } else {
+      this.last = (this.last + 1) % this.maxSize;
+    }
+    this.items[last] = e;
+    this.len += 1;
+    return true;
+  }
+
+  /**
+   * Remove the object from the queue.
+   *
+   * @return null if the queue is empty; the object removed from the queue otherwise.
+   */
+  public Object deq() {
+    if (this.isEmpty()) {
+      return null;
+    }
+    Object item = this.items[this.first];
+    this.first = (this.first + 1) % this.maxSize;
+    this.len -= 1;
+    return item;
+  }
+
+  /**
+   * Checks if the queue is full.
+   *
+   * @return true if the queue is full; false otherwise.
+   */
+  boolean isFull() {
+    return (this.len == this.maxSize);
+  }
+
+  /**
+   * Checks if the queue is empty.
+   *
+   * @return true if the queue is empty; false otherwise.
+   */
+  boolean isEmpty() {
+    return (this.len == 0);
+  }
+
+  /**
+   * Return the number of elements in the queue.
+   *
+   * @return The number of elements in the queue.
+   */
+  public int length() {
+    return this.len;
+  }
+
+  /**
+   * Returns the string representation of the queue.
+   * 
+   * @return A string consisting of the string representation of 
+   * every object in the queue.
+   */
+  @Override
+  public String toString() {
+    String str = "[ ";
+    int i = this.first;
+    int count = 0;
+    while (count < this.len) {
+      str += this.items[i] + " ";
+      i = (i + 1) % this.maxSize;
+      count++;
+    } 
+    return str + "]";
+  }
+}

inputs/Lab2.1.in

@@ -0,0 +1,4 @@
+3 1 2
+1.0 1.0
+3.0 1.0
+5.0 1.0

inputs/Lab2.10.in

@@ -0,0 +1,6 @@
+5 2 2
+1.0 1.5
+1.2 1.0
+1.4 1.0
+1.6 1.0
+2.1 1.0

inputs/Lab2.2.in

@@ -0,0 +1,4 @@
+3 1 2
+1.1 2.0
+2.2 2.0
+3.3 2.0

inputs/Lab2.3.in

@@ -0,0 +1,7 @@
+6 1 2
+1.1 2
+1.2 2
+1.3 2
+1.4 2
+4.0 2
+5.0 2

inputs/Lab2.4.in

@@ -0,0 +1,7 @@
+6 1 3
+1.1 2
+1.2 2
+1.3 2
+1.4 2
+4.0 2
+5.0 2

inputs/Lab2.5.in

@@ -0,0 +1,5 @@
+4 2 1
+1.0 1.0
+1.1 1.0
+2.2 1.0
+2.3 1.0

inputs/Lab2.6.in

@@ -0,0 +1,5 @@
+4 2 2
+1.0 1.0
+1.1 1.0
+2.2 1.0
+2.3 1.0

inputs/Lab2.7.in

@@ -0,0 +1,4 @@
+3 2 1
+1.0 4
+2.1 1
+4.2 1

inputs/Lab2.8.in

@@ -0,0 +1,6 @@
+5 2 1
+1.0 1.0
+1.2 1.0
+1.4 1.0
+1.6 1.0
+2.1 1.0

inputs/Lab2.9.in

@@ -0,0 +1,6 @@
+5 2 2
+1.0 1.0
+1.2 1.0
+1.4 1.0
+1.6 1.0
+2.1 1.0

outputs/Lab2.1.out

@@ -0,0 +1,12 @@
+1.000: C0 arrived [ ]
+1.000: C0 service begin (by S0)
+2.000: C0 service done (by S0)
+2.000: C0 departed
+3.000: C1 arrived [ ]
+3.000: C1 service begin (by S0)
+4.000: C1 service done (by S0)
+4.000: C1 departed
+5.000: C2 arrived [ ]
+5.000: C2 service begin (by S0)
+6.000: C2 service done (by S0)
+6.000: C2 departed

outputs/Lab2.10.out

@@ -0,0 +1,20 @@
+1.000: C0 arrived [ ]
+1.000: C0 service begin (by S0)
+1.200: C1 arrived [ ]
+1.200: C1 service begin (by S1)
+1.400: C2 arrived [ ]
+1.400: C2 joined queue [ ]
+1.600: C3 arrived [ C2 ]
+1.600: C3 joined queue [ C2 ]
+2.100: C4 arrived [ C2 C3 ]
+2.100: C4 departed
+2.200: C1 service done (by S1)
+2.200: C1 departed
+2.200: C2 service begin (by S1)
+2.500: C0 service done (by S0)
+2.500: C0 departed
+2.500: C3 service begin (by S0)
+3.200: C2 service done (by S1)
+3.200: C2 departed
+3.500: C3 service done (by S0)
+3.500: C3 departed

outputs/Lab2.2.out

@@ -0,0 +1,14 @@
+1.100: C0 arrived [ ]
+1.100: C0 service begin (by S0)
+2.200: C1 arrived [ ]
+2.200: C1 joined queue [ ]
+3.100: C0 service done (by S0)
+3.100: C0 departed
+3.100: C1 service begin (by S0)
+3.300: C2 arrived [ ]
+3.300: C2 joined queue [ ]
+5.100: C1 service done (by S0)
+5.100: C1 departed
+5.100: C2 service begin (by S0)
+7.100: C2 service done (by S0)
+7.100: C2 departed

outputs/Lab2.3.out

@@ -0,0 +1,23 @@
+1.100: C0 arrived [ ]
+1.100: C0 service begin (by S0)
+1.200: C1 arrived [ ]
+1.200: C1 joined queue [ ]
+1.300: C2 arrived [ C1 ]
+1.300: C2 joined queue [ C1 ]
+1.400: C3 arrived [ C1 C2 ]
+1.400: C3 departed
+3.100: C0 service done (by S0)
+3.100: C0 departed
+3.100: C1 service begin (by S0)
+4.000: C4 arrived [ C2 ]
+4.000: C4 joined queue [ C2 ]
+5.000: C5 arrived [ C2 C4 ]
+5.000: C5 departed
+5.100: C1 service done (by S0)
+5.100: C1 departed
+5.100: C2 service begin (by S0)
+7.100: C2 service done (by S0)
+7.100: C2 departed
+7.100: C4 service begin (by S0)
+9.100: C4 service done (by S0)
+9.100: C4 departed

outputs/Lab2.4.out

@@ -0,0 +1,26 @@
+1.100: C0 arrived [ ]
+1.100: C0 service begin (by S0)
+1.200: C1 arrived [ ]
+1.200: C1 joined queue [ ]
+1.300: C2 arrived [ C1 ]
+1.300: C2 joined queue [ C1 ]
+1.400: C3 arrived [ C1 C2 ]
+1.400: C3 joined queue [ C1 C2 ]
+3.100: C0 service done (by S0)
+3.100: C0 departed
+3.100: C1 service begin (by S0)
+4.000: C4 arrived [ C2 C3 ]
+4.000: C4 joined queue [ C2 C3 ]
+5.000: C5 arrived [ C2 C3 C4 ]
+5.000: C5 departed
+5.100: C1 service done (by S0)
+5.100: C1 departed
+5.100: C2 service begin (by S0)
+7.100: C2 service done (by S0)
+7.100: C2 departed
+7.100: C3 service begin (by S0)
+9.100: C3 service done (by S0)
+9.100: C3 departed
+9.100: C4 service begin (by S0)
+11.100: C4 service done (by S0)
+11.100: C4 departed

outputs/Lab2.5.out

@@ -0,0 +1,16 @@
+1.000: C0 arrived [ ]
+1.000: C0 service begin (by S0)
+1.100: C1 arrived [ ]
+1.100: C1 service begin (by S1)
+2.000: C0 service done (by S0)
+2.000: C0 departed
+2.100: C1 service done (by S1)
+2.100: C1 departed
+2.200: C2 arrived [ ]
+2.200: C2 service begin (by S0)
+2.300: C3 arrived [ ]
+2.300: C3 service begin (by S1)
+3.200: C2 service done (by S0)
+3.200: C2 departed
+3.300: C3 service done (by S1)
+3.300: C3 departed

outputs/Lab2.6.out

@@ -0,0 +1,16 @@
+1.000: C0 arrived [ ]
+1.000: C0 service begin (by S0)
+1.100: C1 arrived [ ]
+1.100: C1 service begin (by S1)
+2.000: C0 service done (by S0)
+2.000: C0 departed
+2.100: C1 service done (by S1)
+2.100: C1 departed
+2.200: C2 arrived [ ]
+2.200: C2 service begin (by S0)
+2.300: C3 arrived [ ]
+2.300: C3 service begin (by S1)
+3.200: C2 service done (by S0)
+3.200: C2 departed
+3.300: C3 service done (by S1)
+3.300: C3 departed

outputs/Lab2.7.out

@@ -0,0 +1,12 @@
+1.000: C0 arrived [ ]
+1.000: C0 service begin (by S0)
+2.100: C1 arrived [ ]
+2.100: C1 service begin (by S1)
+3.100: C1 service done (by S1)
+3.100: C1 departed
+4.200: C2 arrived [ ]
+4.200: C2 service begin (by S1)
+5.000: C0 service done (by S0)
+5.000: C0 departed
+5.200: C2 service done (by S1)
+5.200: C2 departed

outputs/Lab2.8.out

@@ -0,0 +1,20 @@
+1.000: C0 arrived [ ]
+1.000: C0 service begin (by S0)
+1.200: C1 arrived [ ]
+1.200: C1 service begin (by S1)
+1.400: C2 arrived [ ]
+1.400: C2 joined queue [ ]
+1.600: C3 arrived [ C2 ]
+1.600: C3 departed
+2.000: C0 service done (by S0)
+2.000: C0 departed
+2.000: C2 service begin (by S0)
+2.100: C4 arrived [ ]
+2.100: C4 joined queue [ ]
+2.200: C1 service done (by S1)
+2.200: C1 departed
+2.200: C4 service begin (by S1)
+3.000: C2 service done (by S0)
+3.000: C2 departed
+3.200: C4 service done (by S1)
+3.200: C4 departed

outputs/Lab2.9.out

@@ -0,0 +1,23 @@
+1.000: C0 arrived [ ]
+1.000: C0 service begin (by S0)
+1.200: C1 arrived [ ]
+1.200: C1 service begin (by S1)
+1.400: C2 arrived [ ]
+1.400: C2 joined queue [ ]
+1.600: C3 arrived [ C2 ]
+1.600: C3 joined queue [ C2 ]
+2.000: C0 service done (by S0)
+2.000: C0 departed
+2.000: C2 service begin (by S0)
+2.100: C4 arrived [ C3 ]
+2.100: C4 joined queue [ C3 ]
+2.200: C1 service done (by S1)
+2.200: C1 departed
+2.200: C3 service begin (by S1)
+3.000: C2 service done (by S0)
+3.000: C2 departed
+3.000: C4 service begin (by S0)
+3.200: C3 service done (by S1)
+3.200: C3 departed
+4.000: C4 service done (by S0)
+4.000: C4 departed