refactor: improved examples for CopyOnWriteArrayList

src/main/java/org/alxkm/antipatterns/usingthreadsafecollectionsincorrectly/CorrectUsage.java

@@ -35,5 +35,42 @@ public synchronized void addIfAbsent(String element) {
     public int size() {
         return list.size();
     }
-}
 
+    public static void main(String[] args) {
+        CorrectUsage usage = new CorrectUsage();
+
+        // Create threads to perform operations on the list
+        Thread thread1 = new Thread(() -> {
+            for (int i = 0; i < 100; i++) {
+                usage.addIfAbsent("Element " + i);
+            }
+        });
+
+        Thread thread2 = new Thread(() -> {
+            for (int i = 50; i < 150; i++) {
+                usage.addIfAbsent("Element " + i);
+            }
+        });
+
+        // Start the threads
+        thread1.start();
+        thread2.start();
+
+        // Wait for both threads to complete
+        try {
+            thread1.join();
+            thread2.join();
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+
+        // Print the final size of the list
+        System.out.println("Final size of the list: " + usage.size());
+
+        // Print elements in the list to demonstrate correct usage
+        System.out.println("Elements in the list:");
+        for (String element : usage.list) {
+            System.out.println(element);
+        }
+    }
+}