Add creational patterns, Interpreter; remove scripts; update README

01-creational/abstract-factory/Main.java

@@ -0,0 +1,22 @@
+package abstractfactory;
+
+public class Main {
+    public static void main(String[] args) {
+        System.out.println("=== Abstract Factory Pattern Demo ===\n");
+
+        String os = System.getProperty("os.name", "Windows").toLowerCase();
+        GUIFactory factory = os.contains("mac") ? new MacFactory() : new WindowsFactory();
+
+        System.out.println("Detected OS family: " + (os.contains("mac") ? "Mac" : "Windows"));
+        System.out.println();
+
+        Application app = new Application(factory);
+        app.render();
+        app.simulateClick();
+
+        System.out.println("\n--- Forcing Mac UI ---");
+        Application macApp = new Application(new MacFactory());
+        macApp.render();
+        macApp.simulateClick();
+    }
+}