From d26c032a5a6380e99e1ee53f2bdaf98f731b8f12 Mon Sep 17 00:00:00 2001
From: processisanswer <41319181+processisanswer@users.noreply.github.com>
Date: Sat, 12 Feb 2022 23:57:27 +0800
Subject: [PATCH 1/2] =?UTF-8?q?Update=20SinglyLinkedList.java-=E4=BF=AE?=
 =?UTF-8?q?=E6=94=B9=E5=8F=AF=E9=87=8D=E5=A4=8D=E5=88=A0=E9=99=A4=E6=8C=87?=
 =?UTF-8?q?=E5=AE=9Avalue=E7=9A=84=E4=BB=A3=E7=A0=81?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

举例：1->1->1->1 或者1->1->1->2->3->1类似数据组织形式，删除指定value=1时，可能获取不到合理结果。
---
 java/06_linkedlist/SinglyLinkedList.java | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/java/06_linkedlist/SinglyLinkedList.java b/java/06_linkedlist/SinglyLinkedList.java
index cf3d1545..d3d63235 100644
--- a/java/06_linkedlist/SinglyLinkedList.java
+++ b/java/06_linkedlist/SinglyLinkedList.java
@@ -49,6 +49,7 @@ public void insertToHead(Node newNode) {
 
     //顺序插入
     //链表尾部插入
+    
     public void insertTail(int value){
 
         Node newNode = new Node(value, null);
@@ -143,12 +144,12 @@ public void deleteByValue(int value) {
 
         // 可重复删除指定value的代码
         /*
-           if (head != null && head.data == value) {
+           while (head != null && head.data == value) {
            head = head.next;
            }
 
            Node pNode = head;
-           while (pNode != null) {
+           while (pNode != null && pNode.next!=null) {
            if (pNode.next.data == data) {
            pNode.next = pNode.next.next;
            continue;

From cbc89284cc0bfabbef4adfcbad9ed518745fdb69 Mon Sep 17 00:00:00 2001
From: processisanswer <41319181+processisanswer@users.noreply.github.com>
Date: Sun, 13 Feb 2022 12:03:36 +0800
Subject: [PATCH 2/2] =?UTF-8?q?=E5=AE=8C=E5=96=84=E6=9C=AA=E6=B7=BB?=
 =?UTF-8?q?=E5=8A=A0=E5=85=83=E7=B4=A0=E7=9B=B4=E6=8E=A5=E5=88=A0=E9=99=A4?=
 =?UTF-8?q?=E5=A4=B4=E9=83=A8=E6=88=96=E5=B0=BE=E9=83=A8=E5=85=83=E7=B4=A0?=
 =?UTF-8?q?=E6=97=B6=E7=9A=84=E5=BC=82=E5=B8=B8=E5=A4=84=E7=90=86?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

GenericArray<Integer> intArr = new GenericArray<>();
intArr.removeFirst();//或者intArr.removeLast();
未添加元素，直接删除头部或尾部元素时，合理的异常应该为IndexOutOfBoundsException，不过原程序已经考虑的很周到了
---
 java/05_array/GenericArray.java | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/java/05_array/GenericArray.java b/java/05_array/GenericArray.java
index 631a1bae..6f1a4fee 100644
--- a/java/05_array/GenericArray.java
+++ b/java/05_array/GenericArray.java
@@ -156,8 +156,11 @@ private void checkIndex(int index) {
     }
 
     private void checkIndexForRemove(int index) {
+         if (size ==0){
+            throw new IndexOutOfBoundsException("remove failed! Require size>0");
+        }
         if(index < 0 || index >= size) {
             throw new IllegalArgumentException("remove failed! Require index >=0 and index < size.");
         }
     }
-}
\ No newline at end of file
+}