1Z0-805 Real Exam Questions

Which method or methods should you implement to create your own implementation of the java.nio.file.PathMatcher interface?

Given: public class MyGrades { private final List<Integer> myGrades = new ArrayList<Integer>(); private final ReadWriteLock rwlock = new ReentrantReadWriteLock(); public void addGrade(Integer grade) { // acquire _______ lock myGrades.add(grade); // release __________ lock } public void averageGrades() { Oracle 1Z0-805 Exam // acquire _______ lock Line ** double sum = 0; int i = 0; for (i = 0; i < myGrades.size(); i++) { sum += myGrades.get(i); } // release __________ lock Line *** System.out.println("The average is: " + sum/(i+1)); } } Which pair's statements should you insert at lines ** and lines *** (respectively) to acquire and release the most appropriate lock?

Given: private static void copyContents() { try ( InputStream fis = new FileInputStream("report1.txt"); OutputStream fos = new FileOutputStream("consolidate.txt"); ) { byte[] buf = new byte[8192]; int i; while ((i = fis.read(buf)) != -1) { fos.write(buf, 0, i); } fis.close(); fis = new FileInputStream("report2.txt"); while ((i = fis.read(buf)) != -1) { fos.write(buf, 0, i); } } What is the result?

Given: Which design pattern moves the getPerson, createPerson, deletePerson, and updatePerson methods to a new class?