[WIP] add a simple and incomplete volatile example

fishercoder1534 · fishercoder1534 · commit 4c45fad3b329 · 2023-10-15T08:36:09.000-07:00
diff --git a/src/main/java/java_volatile/TaskRunner.java b/src/main/java/java_volatile/TaskRunner.java
@@ -0,0 +1,26 @@
+package java_volatile;
+
+public class TaskRunner {
+    private static int number;
+    private static boolean ready;
+
+    private static class Reader extends Thread {
+        @Override
+        public void run() {
+            System.out.println("ready is: " + ready);
+            while (!ready) {
+                System.out.println("It's yielding now..");
+                Thread.yield();
+            }
+            System.out.println("number is: " + number);
+        }
+    }
+
+    public static void main(String[] args) {
+        System.out.println("Program started.");
+        new Reader().start();
+        number = 42;
+        ready = true;
+        System.out.println("Program finished.");
+    }
+}
