diff --git a/jlh/src/main/java/com/jlh/viewer/thread/ThreadJoinTestList.java b/jlh/src/main/java/com/jlh/viewer/thread/ThreadJoinTestList.java
new file mode 100644
index 0000000000000000000000000000000000000000..fff6f3d00aebef13381e922e2d8631f5c40a3343
--- /dev/null
+++ b/jlh/src/main/java/com/jlh/viewer/thread/ThreadJoinTestList.java
@@ -0,0 +1,65 @@
+package com.jlh.viewer.thread;
+
+import java.util.concurrent.TimeUnit;
+
+/**
+ * com.jlh.viewer.thread
+ * Created by ASUS on 2017/3/12.
+ * 10:13
+ */
+public class ThreadJoinTestList {
+    public static void main(String[] args) throws InterruptedException {
+        // sleep 方法不释放锁，wait释放锁
+        // join 方法会使调用此访问的线程等待 目标对象完成之前 陷入等待，，用于控制顺序
+        // 前提是目标对象线程还活着，或者已经启动，否则是不会阻塞的 通过调用本地方法 native isalive 来判断线程是否存活
+        // join的参数 long 是指 线程多久检查一次，默认是一只循环检查 加入,  一旦wait对象锁有了，就会立刻获取，而不会一定等到指定时间获取
+        Thread t1=new Thread(()->{
+            try {
+                TimeUnit.SECONDS.sleep(3);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+            System.out.println("one start");
+        });
+        Thread t2=new Thread(()->{
+            try {
+                t1.join(10*1000);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+            System.out.println("two start");
+        });
+        t2.start();
+        t1.start();
+
+        ThreadJoinTestList threadJoinTestList = new ThreadJoinTestList();
+        new Thread(()->{
+            for (int i=0;i<10;i++){
+                try {
+                    TimeUnit.MILLISECONDS.sleep(1000);
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+                try {
+                    threadJoinTestList.do2();
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+            }
+        }).start();
+        threadJoinTestList.do1();
+
+
+    }
+
+    public synchronized void do1() throws InterruptedException {
+        for (int i=0;i<10;i++){
+            this.wait(3000);
+            System.out.println(i);
+        }
+    }
+    public synchronized void do2() throws InterruptedException {
+        this.notifyAll();
+//        TimeUnit.SECONDS.sleep(10);
+    }
+}