lock

fengyuan.wan · fengyuan.wan · commit 442617be8d20 · 2021-02-03T18:40:14.000+08:00
diff --git a/03concurrency/0301/src/main/java/java0/conc0302/threadpool/ReentrantLockTest.java b/03concurrency/0301/src/main/java/java0/conc0302/threadpool/ReentrantLockTest.java
@@ -0,0 +1,34 @@
+package java0.conc0302.threadpool;
+
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+
+/**
+ * @Desc
+ * @Author wfy
+ * @Date 2021/2/3 18:05
+ */
+public class ReentrantLockTest {
+    static Lock lock = new ReentrantLock(true);
+    static int count = 0;
+
+    public static void main(String[] args) {
+        for (int i = 0; i < 10; i++) {
+            new Thread(ReentrantLockTest::incr).start();
+        }
+
+    }
+
+    public static void incr() {
+        lock.lock();
+        try {
+            for (int i = 0; i < 10000; i++) {
+                count++;
+                System.out.println(count);
+            }
+        } finally {
+            lock.unlock();
+        }
+
+    }
+}
