SynchroThread__同步线程

CPU-Code · CPU-Code · commit 8a2255631ecb · 2021-02-09T12:44:23.000+08:00
diff --git a/thread/src/com/cpucode/java/synchro/SynchroThread.java b/thread/src/com/cpucode/java/synchro/SynchroThread.java
@@ -0,0 +1,53 @@
+package com.cpucode.java.synchro;
+
+/**
+ * @author : cpucode
+ * @date : 2021/2/9
+ * @time : 12:17
+ * @github : https://github.com/CPU-Code
+ * @csdn : https://blog.csdn.net/qq_44226094
+ */
+public class SynchroThread{
+    public static void main(String[] args) throws Exception{
+        Thread add = new AddThreadTest();
+        Thread dec = new DecThreadTest();
+
+        add.start();
+        dec.start();
+
+        add.join();
+        dec.join();
+
+        System.out.println(CounterTest.count);
+    }
+}
+
+class CounterTest{
+    /**
+     * 锁
+     * */
+    public static final Object lock = new Object();
+    public static int count = 0;
+}
+
+class AddThreadTest extends Thread{
+    @Override
+    public void run(){
+        //对一个对象进行加锁
+        synchronized (CounterTest.lock){
+            //临界区
+            CounterTest.count += 1;
+        }
+    }
+}
+
+class DecThreadTest extends Thread{
+    @Override
+    public void run(){
+        //对一个对象进行加锁
+        synchronized (CounterTest.lock){
+            //临界区
+            CounterTest.count -= 1;
+        }
+    }
+}
