diff --git a/.devcontainer.json b/.devcontainer.json
new file mode 100644
index 0000000..bfbeb0d
--- /dev/null
+++ b/.devcontainer.json
@@ -0,0 +1,3 @@
+{
+    "image": "mcr.microsoft.com/devcontainers/java:21"
+}
\ No newline at end of file
diff --git a/.vscode/extensions.json b/.vscode/extensions.json
new file mode 100644
index 0000000..add4f4e
--- /dev/null
+++ b/.vscode/extensions.json
@@ -0,0 +1,5 @@
+{
+    "recommendations": [
+        "vscjava.vscode-java-pack"
+    ]
+}
\ No newline at end of file
diff --git a/Exercise.java b/Exercise.java
index 9dabbb2..bac2e7e 100644
--- a/Exercise.java
+++ b/Exercise.java
@@ -1,4 +1,5 @@
 import java.util.ArrayList;
+import java.util.function.Consumer;
 
 public class Exercise {
 
@@ -14,5 +15,22 @@ public static void main(String[] args) {
     students.add(new Student("Yannik", 28));
     students.add(new Student("Hanni", 29));
     students.add(new Student("Manu", 30));
+
+    students.forEach(
+        new Consumer<Student>() {
+          @Override
+          public void accept(Student student) {
+            if (student.age() > 26) {
+              System.out.println(student.name() + " ist " + student.age() + " Jahre alt");
+            }
+          }
+        });
+
+    students.forEach(
+        (student) -> {
+          if (student.age() > 26) {
+            System.out.println(student.name() + " ist " + student.age() + " Jahre alt");
+          }
+        });
   }
 }