From cb9c19f2f4225fadfc9029bb32335311aa322914 Mon Sep 17 00:00:00 2001
From: Parambir Singh <parambirs@users.noreply.github.com>
Date: Thu, 4 Jul 2019 16:37:21 -0700
Subject: [PATCH] Update inner-classes.md

Explicitly specify `Unit` return type in example code
---
 _tour/inner-classes.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/_tour/inner-classes.md b/_tour/inner-classes.md
index 172dd03bcd..fd99065542 100644
--- a/_tour/inner-classes.md
+++ b/_tour/inner-classes.md
@@ -21,7 +21,7 @@ To illustrate the difference, we quickly sketch the implementation of a graph da
 class Graph {
   class Node {
     var connectedNodes: List[Node] = Nil
-    def connectTo(node: Node) {
+    def connectTo(node: Node): Unit = {
       if (connectedNodes.find(node.equals).isEmpty) {
         connectedNodes = node :: connectedNodes
       }
@@ -65,7 +65,7 @@ The type `graph1.Node` is distinct from the type `graph2.Node`. In Java, the las
 class Graph {
   class Node {
     var connectedNodes: List[Graph#Node] = Nil
-    def connectTo(node: Graph#Node) {
+    def connectTo(node: Graph#Node): Unit = {
       if (connectedNodes.find(node.equals).isEmpty) {
         connectedNodes = node :: connectedNodes
       }