feat: move everything to single folder

cs2030s/Lab4/Print.java

@@ -0,0 +1,17 @@
+/**
+ * A non-generic Action to print the String
+ * representation of the object.
+ * CS2030S Lab 4
+ * AY22/23 Semester 1
+ *
+ * @author Yadunand Prem (10B)
+ */
+
+class Print implements Action<Object> {
+
+  @Override
+  public void call(Object item) {
+    System.out.println(item);
+  }
+
+}