1 files changed, 21 insertions, 0 deletions
diff --git a/de/unibayreuth/se/observer/Subject.java b/de/unibayreuth/se/observer/Subject.java
new file mode 100644
index 0000000..2f0b5bb
--- /dev/null
+++ b/de/unibayreuth/se/observer/Subject.java
@@ -0,0 +1,21 @@
+package de.unibayreuth.se.observer;
+
+public abstract class Subject {
+    // TODO
+
+    public Subject() {
+        // TODO
+    }
+
+    void attach(Observer observer) {
+        // TODO
+    }
+
+    void detach(Observer observer) {
+        // TODO
+    }
+
+    protected void fireUpdate() {
+        // TODO
+    }
+}