feat: update structure

cs2030s/labs/Lab1/Array.java

@@ -0,0 +1,53 @@
+/**
+ * The Array for CS2030S
+ *
+ * @author Yadunand Prem
+ * @version CS2030S AY21/22 Semester 2
+ */
+
+class Array<T extends Comparable<T>> {
+  private T[] array;
+
+  public Array(int size) {
+    // The only way to add values to `array` is via set(), and we can only put
+    // objects of type T via that method. Thus, it is safe to cast Comparable[]
+    // to T[].
+    @SuppressWarnings("unchecked")
+    T[] temp = (T[]) new Comparable[size];
+    this.array = temp;
+  }
+
+  public void set(int index, T item) {
+    this.array[index] = item;
+  }
+
+  public T get(int index) {
+    return this.array[index];
+  }
+
+  public T min() {
+    T result = this.array[0];
+    for (T i : this.array) {
+      if (i.compareTo(result) < 0) {
+        result = i;
+      }
+    }
+    return result;
+  }
+
+  public int length() {
+    return this.array.length;
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder s = new StringBuilder("[ ");
+    for (int i = 0; i < array.length; i++) {
+      s.append(i + ":" + array[i]);
+      if (i != array.length - 1) {
+        s.append(", ");
+      }
+    }
+    return s.append(" ]").toString();
+  }
+}