diff --git a/src/main/java/arytmetyka/Kalkulator.java b/src/main/java/arytmetyka/Kalkulator.java
new file mode 100644
index 0000000..23437f1
--- /dev/null
+++ b/src/main/java/arytmetyka/Kalkulator.java
@@ -0,0 +1,13 @@
+package arytmetyka;
+
+/**
+ * Created on 09.09.16, at 18:26
+ */
+public class Kalkulator {
+    public int add(int x, int y) {
+        return x + y;
+    }
+    public int sub(int x, int y) {
+        return x - y;
+    }
+}
diff --git a/src/main/java/arytmetyka/Startowa.java b/src/main/java/arytmetyka/Startowa.java
new file mode 100644
index 0000000..6bd6126
--- /dev/null
+++ b/src/main/java/arytmetyka/Startowa.java
@@ -0,0 +1,11 @@
+package arytmetyka;
+
+/**
+ * Created on 09.09.16, at 18:26
+ */
+public class Startowa {
+    public static void main(String[] args) {
+        Kalkulator k = new Kalkulator();
+        System.out.println(k.add(1, 2));
+    }
+}