fix cleanup

Technikladen/OrderSystem.java

@@ -3,9 +3,9 @@ import java.util.ArrayList;
 public class OrderSystem {
 	private StorageManager systemManager;
 	private ArrayList<Client> systemClients;
-	public OrderSystem(StorageManager manager, ArrayList<Client> clients) {
+	public OrderSystem(StorageManager manager) {
 		this.systemManager = manager;
-		this.systemClients = clients;
+		this.systemClients = new ArrayList<Client>();
 	}
 	public void addProduct(Product product) {
 		this.systemManager.addProduct(product);

Technikladen/StorageManager.java

@@ -2,8 +2,8 @@ import java.util.ArrayList;
 
 public class StorageManager {
 	private ArrayList<Product> storageProducts;
-	public StorageManager(ArrayList<Product> products) {
-		this.storageProducts = products;
+	public StorageManager() {
+		this.storageProducts = new ArrayList<Product>();
 	}
 	public void addProduct(Product product) {
 		this.storageProducts.add(product);

Technikladen/TechStore.java

@@ -1,13 +1,13 @@
-import java.util.ArrayList;
 import java.util.Scanner;
+import java.util.ArrayList;
 
 public class TechStore {
 	public static void p(String input) {
 		System.out.print(input);
 	}
 	public static void main(String[] args) {
-		StorageManager manager = new StorageManager(new ArrayList<Product>());
-		OrderSystem system = new OrderSystem(manager, new ArrayList<Client>());
+		StorageManager manager = new StorageManager();
+		OrderSystem system = new OrderSystem(manager);
 		Scanner scnr = new Scanner(System.in);
 		while (true) {
 			p("\nInput mode: ");
@@ -106,6 +106,3 @@ public class TechStore {
 		}
 	}
 }
-
-
-