Add creational patterns, Interpreter; remove scripts; update README

01-creational/factory-method/Main.java

@@ -0,0 +1,17 @@
+package factorymethod;
+
+public class Main {
+    public static void main(String[] args) {
+        System.out.println("=== Factory Method Pattern Demo ===\n");
+
+        NotificationService[] services = {
+            new EmailService("alice@example.com"),
+            new SmsService("+1-555-0123"),
+            new PushService("device-token-abc123")
+        };
+
+        for (NotificationService service : services) {
+            service.notifyUser("Your order #1042 has been shipped!");
+        }
+    }
+}