From 4e6136185535962467617b82cbdd0f1aa0764eb6 Mon Sep 17 00:00:00 2001
From: northSmall <604322962@qq.com>
Date: Sun, 26 Feb 2017 17:23:30 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B9arraylist?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../src/main/java/com/coding/basic/ArrayList.java         | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/group19/604322962/learning2017/src/main/java/com/coding/basic/ArrayList.java b/group19/604322962/learning2017/src/main/java/com/coding/basic/ArrayList.java
index 802bca79df..3f2fa618c5 100644
--- a/group19/604322962/learning2017/src/main/java/com/coding/basic/ArrayList.java
+++ b/group19/604322962/learning2017/src/main/java/com/coding/basic/ArrayList.java
@@ -30,7 +30,11 @@ public Object get(int index){
 	}
 	
 	public Object remove(int index){
-		return null;
+		checkIndex(index);
+		Object obj = elementData[index];
+		System.arraycopy(elementData, index+1, elementData, index,
+				size - index-1);
+		return obj;
 	}
 	
 	public int size(){
@@ -45,5 +49,5 @@ private void checkIndex(int index){
 		if (index>elementData.length)
 			throw new IndexOutOfBoundsException();
 	}
-	
+
 }