This page was exported from All PassLeader Oracle Dumps with VCE and PDF for Free [ http://www.oraclebraindump.com ] Export date:Thu Feb 27 14:38:24 2020 / +0000 GMT ___________________________________________________ Title: 100% Pass Guarantee PassLeader 1Z0-809 Dumps with VCE and PDF for Free (Question 51 - Question 60) --------------------------------------------------- PassLeader now are offering 100% pass ensure 1Z0-809 dumps! All 1Z0-809 exam questions have been updated with correct answers, welcome to download the newest PassLeader 1Z0-809 VCE dumps and PDF dumps: https://www.passleader.com/1z0-809.html (132 Q&As --> 201 Q&As) BTW: Download PassLeader 1Z0-809 dumps from Google Drive for free: https://drive.google.com/open?id=0B-ob6L_QjGLpNTlzOWE4bXRKMmM QUESTION 51 Given: 1. abstract class Shape { 2. Shape ( ) { System.out.println (“Shape”); } 3. protected void area ( ) { System.out.println (“Shape”); } 4. } 5. 6. class Square extends Shape { 7. int side; 8. Square int side { 9./* insert code here */ 10. this.side = side; 11. } 12. public void area ( ) { System.out.println (“Square”); } 13. } 14. class Rectangle extends Square { 15. int len, br; 16. Rectangle (int x, int y) { 17. /* insert code here */ 18. len = x, br = y; 19. } 20. void area ( ) { System.out.println (“Rectangle”); } 21. } Which two modifications enable the code to compile? (Choose two.) A.    At line 1, remove: abstract B.    At line 9, insert: super ( ); C.    At line 12, remove: public D.    At line 17, insert: super (x); E.    At line 17, insert: super (); super.side = x; F.    At line 20, use: public void area ( ) { Answer: CD QUESTION 52 Given: class Bird { public void fly () { System.out.print(“Can fly”); } } class Penguin extends Bird { public void fly () { System.out.print(“Cannot fly”); } } and the code fragment: class Birdie { public static void main (String [ ] args) { fly( ( ) -> new Bird ( )); fly (Penguin : : new); } /* line n1 */ } Which code fragment, when inserted at line n1, enables the Birdie class to compile? A.    static void fly (Consumer<Bird> bird) { bird :: fly (); } B.    static void fly (Consumer<? extends Bird> bird) { bird.accept( ) fly (); } C.    static void fly (Supplier<Bird> bird) { bird.get( ) fly (); } D.    static void fly (Supplier<? extends Bird> bird) { LOST Answer: C QUESTION 53 Given: class Student { String course, name, city; public Student (String name, String course, String city) { this.course = course; this.name = name; this.city = city; } public String toString() { return course + “:” + name + “:” + city; } and the code fragment: List<Student> stds = Arrays.asList( new Student (“Jessy”, “Java ME”, “Chicago”), new Student (“Helen”, “Java EE”, “Houston”), new Student (“Mark”, “Java ME”, “Chicago”)); stds.stream() .collect(Collectors.groupingBy(Student::getCourse)) .forEach(src, res) -> System.out.println(scr)); What is the result? A.    [Java EE: Helen:Houston] [Java ME: Jessy:Chicago, Java ME: Mark:Chicago] B.    Java EE Java ME C.    [Java ME: Jessy:Chicago, Java ME: Mark:Chicago] [Java EE: Helen:Houston] D.    A compilation error occurs Answer: C QUESTION 54 Given: class Worker extends Thread { CyclicBarrier cb; public Worker(CyclicBarrier cb) { this.cb = cb; } public void run () { try { cb.await(); System.out.println(“Worker…”); } catch (Exception ex) { } } } class Master implements Runnable { //line n1 public void run () { System.out.println(“Master…”); } } and the code fragment: Master master = new Master(); //line n2 Worker worker = new Worker(cb); worker.start(); You have been asked to ensure that the run methods of both the Worker and Master classes are executed. Which modification meets the requirement? A.    At line n2, insert: CyclicBarrier cb = new CyclicBarrier(2, master); B.    Replace line n1 with: class Master extends Thread { C.    At line n2, insert: CyclicBarrier cb = new CyclicBarrier(1, master); D.    At line n2, insert: CyclicBarrier cb = new CyclicBarrier(master); Answer: B QUESTION 55 Given: A.    ns = 50 S = 125 ns = 125 S = 125 ns = 100 S = 125 B.    ns = 50 S = 125 ns = 125 S = 125 ns = 0 S = 125 C.    ns = 50 S = 50 ns = 125 S = 125 ns = 100 S = 100 D.    ns = 50 S = 50 ns = 125 S = 125 ns = 0 S = 125 Answer: B QUESTION 56 Given the code fragment: public class Foo { public static void main (String [ ] args) { Map<Integer, String> unsortMap = new HashMap< > ( ); unsortMap.put (10, "z"); unsortMap.put (5, "b"); unsortMap.put (1, "d"); unsortMap.put (7, "e"); unsortMap.put (50, "j"); Map<Integer, String> treeMap = new TreeMap <Integer, String> (new Comparator<Integer> ( ) { @Override public int compare (Integer o1, Integer o2) {return o2.compareTo (o1); } } ); treeMap.putAll (unsortMap); for (Map.Entry<Integer, String> entry : treeMap.entrySet () ) { System.out.print (entry.getValue () + " "); } } } What is the result? A.    A compilation error occurs B.    d b e z j C.    j z e b d D.    z b d e j Answer: C QUESTION 57 Given the code fragments: class Employee { Optional<Address> address; Employee (Optional<Address> address) { this.address = address; } public Optional<Address> getAddress() { return address; } } class Address { String city = “New York”; public String getCity { return city: } public String toString() { return city; } } and Address address = null; Optional<Address> addrs1 = Optional.ofNullable (address); Employee e1 = new Employee (addrs1); String eAddress = (addrs1.isPresent()) ? addrs1.get().getCity() : “City Not available”; What is the result? A.    New York B.    City Not available C.    null D.    A NoSuchElementException is thrown at run time Answer: C QUESTION 58 Given the code fragment: What is the result? A.    Found Red Found Default B.    Found Teal C.    Found Red Found Blue Found Teal D.    Found Red Found Blue Found Teal Found Default E.    Found Default Answer: B QUESTION 59 Given: What is the result? A.    0 Done B.    First Exception Done C.    Second Exception D.    Done Third Exception E.    Third Exception Answer: B QUESTION 60 Given the code fragment: public void recDelete (String dirName) throws IOException { File [ ] listOfFiles = new File (dirName) .listFiles(); if (listOfFiles ! = null && listOfFiles.length >0) { for (File aFile : listOfFiles) { if (aFile.isDirectory ()) { recDelete (aFile.getAbsolutePath ()); } else { if (aFile.getName ().endsWith (“.class”)) aFile.delete (); } } } } Assume that Projects contains subdirectories that contain .class files and is passed as an argument to the recDelete () method when it is invoked. What is the result? A.    The method deletes all the .class files in the Projects directory and its subdirectories. B.    The method deletes the .class files of the Projects directory only. C.    The method executes and does not make any changes to the Projects directory. D.    The method throws an IOException. Answer: B PassLeader now are offering 100% pass ensure 1Z0-809 dumps! All 1Z0-809 exam questions have been updated with correct answers, welcome to download the newest PassLeader 1Z0-809 VCE dumps and PDF dumps: https://www.passleader.com/1z0-809.html (132 Q&As --> 201 Q&As) BTW: Download PassLeader 1Z0-809 dumps from Google Drive for free: https://drive.google.com/open?id=0B-ob6L_QjGLpNTlzOWE4bXRKMmM --------------------------------------------------- Images: http://www.oraclebraindump.com/wp-content/uploads/2017/12/passleader-1Z0-809-dumps-551_thumb.jpg http://www.oraclebraindump.com/wp-content/uploads/2017/12/passleader-1Z0-809-dumps-581_thumb.jpg http://www.oraclebraindump.com/wp-content/uploads/2017/12/passleader-1Z0-809-dumps-591_thumb.jpg --------------------------------------------------- --------------------------------------------------- Post date: 2017-11-09 06:53:23 Post date GMT: 2017-11-09 06:53:23 Post modified date: 2018-07-16 09:26:38 Post modified date GMT: 2018-07-16 09:26:38 ____________________________________________________________________________________________ Export of Post and Page as text file has been powered by [ Universal Post Manager ] plugin from www.gconverters.com