fixed dead lock

data/2.Java中阶/7.注解/1.基本语法/Annotation.json

@@ -2,6 +2,6 @@
   "type": "code_options",
   "author": "zxm2015",
   "source": "Annotation.md",
-  "notebook_enable": true,
+  "notebook_enable": false,
   "exercise_id": "0c8cac5c81694e059635025cceaba40c"
 }
\ No newline at end of file

data/2.Java中阶/7.注解/2.使用apt处理注解/Apt.json

@@ -2,6 +2,6 @@
   "type": "code_options",
   "author": "zxm2015",
   "source": "Apt.md",
-  "notebook_enable": true,
+  "notebook_enable": false,
   "exercise_id": "3abe982223824612bdf4a78ab47225b7"
 }
\ No newline at end of file

data/2.Java中阶/8.并发/1.并发的定义/Abstract.json

@@ -3,5 +3,5 @@
   "author": "zxm2015",
   "source": "Abstract.md",
   "exercise_id": "c0b3c3a116444a9da55c0e03d4cbc928",
-  "notebook_enable": true
+  "notebook_enable": false
 }
\ No newline at end of file

data/2.Java中阶/8.并发/2.线程属性/Thread.json

@@ -3,5 +3,5 @@
   "author": "zxm2015",
   "source": "Thread.md",
   "exercise_id": "cb9e91c0bc524d1a85dff099ca525375",
-  "notebook_enable": true
+  "notebook_enable": false
 }
\ No newline at end of file

data/2.Java中阶/8.并发/3.线程状态/ThreadStatus.json

@@ -3,5 +3,5 @@
   "author": "zxm2015",
   "source": "ThreadStatus.md",
   "exercise_id": "91345807aa8842df8546b70f2aa76a57",
-  "notebook_enable": true
+  "notebook_enable": false
 }
\ No newline at end of file

data/2.Java中阶/8.并发/4.线程之间的协作/ProductorAndConsumer.json

@@ -3,5 +3,5 @@
   "author": "zxm2015",
   "source": "ProductorAndConsumer.md",
   "exercise_id": "5297702807ce4117ab0d2f739d6985b8",
-  "notebook_enable": true
+  "notebook_enable": false
 }
\ No newline at end of file

data/2.Java中阶/8.并发/4.线程之间的协作/ProductorAndConsumer.md

 # 生产者消费者
 
 生产者消费者是软件开发者经常会用到的一种模式，以下代码是一种简单的实现：
+
 ```java
 class Producter extends Thread {
     private BlockingQueue<String> queue;
@@ -43,7 +44,9 @@ public class ThreadTest {
     }
 }
 ```
+
 要输出的结果为
+
 ```
 b0
 b1
@@ -52,6 +55,7 @@ a0
 a1
 a2
 ```
+
 则1处的代码可以是下列选项中的哪一个？
 
 

data/2.Java中阶/8.并发/5.死锁/DeadLock.json

@@ -3,5 +3,5 @@
   "author": "zxm2015",
   "source": "DeadLock.md",
   "exercise_id": "2f421bd88a7b4afd9a38d92e2c57d521",
-  "notebook_enable": true
+  "notebook_enable": false
 }
\ No newline at end of file

data/2.Java中阶/8.并发/5.死锁/DeadLock.md

 # DeadLock
 
 两个线程分别运行以下代码的eatDrink和drinkEat， 会不会发生死锁：
+
 ```java
 public class DeadLock {
     private final String eat = "吃饭";
@@ -49,3 +50,15 @@ public class DeadLock {
 ```
 不会
 ```
+
+### B
+
+```
+只有在多核环境下才会死锁
+```
+
+### C
+
+```
+只有多核环境下才不会死锁
+```
\ No newline at end of file