import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
public class JConcurrencyExample {
public static void main(String[] args) {
ExecutorService executor = Executors.newFixedThreadPool(2);
Callable<Integer> callableTask = () -> {
Thread.sleep(2000);
return 123;
};
Future<Integer> future = executor.submit(callableTask);
try {
Integer result = future.get();
} catch (Exception e) {
e.printStackTrace();
}
executor.shutdown();
}
}
