tsdwl: adds in java

1 files changed, 28 insertions, 0 deletions

diff --git a/Year_3/TSDWL/ex_20191218/Thread2.java b/Year_3/TSDWL/ex_20191218/Thread2.java
new file mode 100644
index 0000000..35cb3fe
--- /dev/null
+++ b/Year_3/TSDWL/ex_20191218/Thread2.java
@@ -0,0 +1,28 @@
+public class Thread2 extends Thread {
+    Shared mem;
+    public Thread2(Shared mem) {
+        super();
+        this.mem = mem;
+    }
+
+    public void run() {
+        int m;
+
+        while (true) {
+            try {
+                Thread.sleep(300);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+                break;
+            }
+            synchronized(mem) {
+                if (mem.get() == -1) {
+                    break;
+                }
+
+                System.out.println("\t\t\tThread 2, notify thread 1");
+                mem.notify();
+            }
+        }
+    }
+}