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1z0-809 Exam Questions

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1z0-809 Exam Questions

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  1. Oracle 1z0-809 Java SE 8 Programmer II

  2. Enjoy your success in Oracle Certification Exams with our Java SE 8 Programmer II Exam Dumps!!! 1z0-809 Dumps Questions Answers with Java SE 8 Programmer II Practice Test software is a success leading way towards your Oracle 1z0-809 Exam. All the 1z0-809 Questions Answers are tested and approved by professional experts to assure 100% success in Oracle Java SE exam. 1z0-809 TestCollection 1z0-809 Free Dumps

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  5. Question NO 1, Given the definition of the Vehicle class: Class Vehhicle { int distance;//line n1 Vehicle (int x) { this distance = x; } public void increSpeed(int time) {//line n2 int timeTravel = time;//line n3 class Car { int value = 0; public void speed () { value = distance /timeTravel; System.out.println (“Velocity with new speed”+value+”kmph”); } } new Car().speed(); } } https://testcollection.us/1z0-809-vce-download.html

  6. and this code fragment: Vehicle v = new Vehicle (100); v.increSpeed(60); What is the result? A. Velocity with new speed B. A compilation error occurs at line n1. C. A compilation error occurs at line n2. D. A compilation error occurs at line n3. Answer: A https://testcollection.us/1z0-809-vce-download.html

  7. Question NO 2, Given: IntStream stream = IntStream.of (1,2,3); IntFunction<Integer> inFu= x -> y -> x*y;//line n1 IntStreamnewStream = stream.map(inFu.apply(10));//line n2 newStream.forEach(System.output::print); Which modification enables the code fragment to compile? A. Replace line n1 with: IntFunction<UnaryOperator> inFu = x -> y -> x*y; B. Replace line n1 with: IntFunction<IntUnaryOperator> inFu = x -> y -> x*y; C. Replace line n1 with: BiFunction<IntUnaryOperator> inFu = x -> y -> x*y; D. Replace line n2 with: IntStreamnewStream = stream.map(inFu.applyAsInt (10)); Answer: D https://testcollection.us/1z0-809-vce-download.html

  8. Question NO 3, Given the code fragment: List<Integer> values = Arrays.asList (1, 2, 3); values.stream () .map(n -> n*2)//line n1 .peek(System.out::print)//line n2 .count(); What is the result? A. 246 B. The code produces no output. C. A compilation error occurs at line n1. D. A compilation error occurs at line n2. Answer: A https://testcollection.us/1z0-809-vce-download.html

  9. Question NO 4, Given the code fragment: public class Foo { public static void main (String [ ] Map<Integer, String> unsortMap 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 () + “ “); } https://testcollection.us/1z0-809-vce-download.html

  10. } } 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 https://testcollection.us/1z0-809-vce-download.html

  11. Question NO 5, Which two reasons should you use interfaces instead of abstract classes? A. You expect that classes that implement your interfaces have many common methods or fields, or require access modifiers other than public. B. You expect that unrelated classes would implement your interfaces. C. You want to share code among several closely related classes. D. You want to declare non-static on non-final fields. E. You want to take advantage of multiple inheritance of type. Answer: A E https://testcollection.us/1z0-809-vce-download.html

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