diff --git a/Rechner/src/Calculator.java b/Rechner/src/Calculator.java
new file mode 100644
index 0000000..af9dec3
--- /dev/null
+++ b/Rechner/src/Calculator.java
@@ -0,0 +1,19 @@
+
+public class Calculator {
+
+	Node<Symbol> erzeugeBeispielBaum() {
+	
+		Node<Symbol> root = new Node<Symbol>(new Symbol("+"));
+		
+		root.left = new Node<Symbol>(new Symbol("3"));
+		
+		root.right = new Node<Symbol>(new Symbol("*"));
+		
+		root.right.left = new Node<Symbol>(new Symbol("5"));
+		
+		root.right.right = new Node<Symbol>(new Symbol("8"));
+	
+		return root;
+	}
+	
+}
diff --git a/Rechner/src/Test.java b/Rechner/src/Test.java
new file mode 100644
index 0000000..9275860
--- /dev/null
+++ b/Rechner/src/Test.java
@@ -0,0 +1,11 @@
+
+public class Test {
+
+	public static void main(String[] args) {
+		
+		Calculator c = new Calculator();
+		
+		Node<Symbol> root = c.erzeugeBeispielBaum();
+	}
+
+}