Java How To Program, Late Objects, 11th Edition

... void main(String[] arg) {
 9         // construct the shared object
10         SimpleArray sharedSimpleArray = new SimpleArray(6);
11
12         // create two tasks to write to the shared SimpleArray
13         ArrayWriter writer1 = new ArrayWriter(1, sharedSimpleArray);
14         ArrayWriter writer2 = new ArrayWriter(11, sharedSimpleArray);
15
16         // execute the tasks with an ExecutorService
17         ExecutorService executorService = Executors.newCachedThreadPool();
18         executorService.execute(writer1);
19         executorService.execute(writer2);
20
21         executorService.shutdown();
22
23         try {
24            // wait 1 minute for both writers to finish executing
25            boolean tasksEnded =
26               executorService.awaitTermination(1, TimeUnit.MINUTES);
27
28            if (tasksEnded) {
39               System.out.printf("%nContents of SimpleArray:%n" ...