From a30c457c4189c16cf46dfa741255d800762c0be2 Mon Sep 17 00:00:00 2001
From: Daniel Langbein <daniel@systemli.org>
Date: Sat, 7 Dec 2024 14:34:33 +0100
Subject: [PATCH] ueb07 b)

---
 ueb07_news_example_b/src/model/NewsCollection.java | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/ueb07_news_example_b/src/model/NewsCollection.java b/ueb07_news_example_b/src/model/NewsCollection.java
index 341fb81d..78ec906e 100644
--- a/ueb07_news_example_b/src/model/NewsCollection.java
+++ b/ueb07_news_example_b/src/model/NewsCollection.java
@@ -1,10 +1,14 @@
 package model;
 
-import java.util.*;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Observer;
+import java.util.Set;
 
 public class NewsCollection extends NewsItem {
 
-	private List<NewsItem> newsItems = new LinkedList<NewsItem>();
+	private List<NewsItem> newsItems = new LinkedList<>();
 
 	// We use a set to avoid duplicates.
 	Set<Observer> observers = new HashSet<>();
@@ -45,7 +49,11 @@ public class NewsCollection extends NewsItem {
 	 */
 	public NewsCollection addItem(NewsItem item) {
 		newsItems.add(item);
+
         observers.forEach(item::addObserver);
+		setChanged();
+		notifyObservers(getTitle() + "\n➕ " + item.getTitle());
+
 		return this;
 	}