From 669c390eb13f515cb9ba99ea391ffcb80662fe29 Mon Sep 17 00:00:00 2001
From: Jian Meng <terencemeng@163.com>
Date: Wed, 2 Sep 2020 12:04:52 +0800
Subject: [PATCH] To correct run result, add empty space lines (#559)

* Update 09-Polymorphism.md

* To correct run result, add empty space lines
---
 docs/book/14-Streams.md | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/docs/book/14-Streams.md b/docs/book/14-Streams.md
index f561173..f3d85ce 100644
--- a/docs/book/14-Streams.md
+++ b/docs/book/14-Streams.md
@@ -886,23 +886,27 @@ class FunctionMap {
 输出结果：
 
 ```
----( add brackets )---
+ ---( add brackets )---
 [12]
 []
 [23]
 [45]
----( Increment )---
+ ---( Increment )---
 13
+
 24
 46
----( Replace )---
+ ---( Replace )---
 19
+
 93
 45
----( Take last digit )---
+ ---( Take last digit )---
 2
+
 3
 5
+
 ```
 
 在上面的自增示例中，我们用 `Integer.parseInt()` 尝试将一个字符串转化为整数。如果字符串不能被转化成为整数就会抛出 `NumberFormatException` 异常，此时我们就回过头来把原始字符串放到输出流中。