// Fig. 23.13: SharedBufferTest.java
// Application with two threads manipulating an unsynchronized buffer.
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;

public class SharedBufferTest {
   public static void main(String[] args) throws InterruptedException {
      // create new thread pool 
      ExecutorService executorService = Executors.newCachedThreadPool();

      // create UnsynchronizedBuffer to store ints       
      Buffer sharedLocation = new UnsynchronizedBuffer();

      System.out.println(
         "Action\t\tValue\tSum of Produced\tSum of Consumed");
      System.out.printf(
         "------\t\t-----\t---------------\t---------------%n%n");

      // execute the Producer and Consumer, giving each 
      // access to the sharedLocation
      executorService.execute(new Producer(sharedLocation));
      executorService.execute(new Consumer(sharedLocation));

      executorService.shutdown(); // terminate app when tasks complete
      executorService.awaitTermination(1, TimeUnit.MINUTES); 
   } 
} 


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