OCP Oracle Certified Professional Java SE 17 Developer Practice Tests

Chapter 13Practice Exam 2

Like Chapter 12, this chapter contains 50 questions and is designed to simulate a real 1Z0-829 exam. Ready with your scratch paper and 90 minutes? Good luck!

1. Which statements about the following application are true? (Choose two.)

   package party;
   import java.util.concurrent.*;
   public class Plan {
      ExecutorService s = Executors.newScheduledThreadPool(10);
      public void planEvents() {
         Runnable r1 = () -> System.out.print("Check food");
         Runnable r2 = () -> System.out.print("Check drinks");
         Runnable r3 = () -> System.out.print("Take out trash");
         s.scheduleWithFixedDelay(r1,1,TimeUnit.HOURS);      // g1
         s.scheduleAtFixedRate(r2,1,1000,TimeUnit.SECONDS);  // g2
         s.execute(r3);                                      // g3
         s.shutdownNow();     
      } }
   

   1. Line g1 does ...