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 3c092f9..e2b1dd6 100644
--- a/Exercise.java
+++ b/Exercise.java
@@ -1,6 +1,10 @@
 public class Exercise {
 
   public static void main(String[] args) {
-    // implement exercise here
+    for (int i = 1; i <= 10; i++) {
+      for (int j = 1; j <= 10; j++) {
+        System.out.println(i + " x " + j + " = " + (i * j));
+      }
+    }
   }
 }