Update Delivery.java

src/main/java/flower/store/Delivery.java

@@ -0,0 +1,20 @@
+package flower.store;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.*;
+
+@RestController
+public class DeliveryController {
+    private final Delivery deliveryStrategy;
+
+    public DeliveryController() {
+        this.deliveryStrategy = new PostDeliveryStrategy();
+    }
+
+    @GetMapping("/delivery")
+    public String getDeliveryInfo() {
+        return deliveryStrategy.deliver(Arrays.asList(new Flower(), new Flower(), new Flower()));
+    }
+}