1Z0-809 Real Exam Questions

Given the code fragment: List<String> gwords = Arrays.asList("why ", "what ", "when "); BinaryOperator<String> operator = (s1, s2) -> s1.concat(s2); // line n1 String sen = gwords.stream() .reduce("Word: ", operator); System.out.println(sen); What is the result?

Given: class Block { String color; int size; Block(int size, String color) { this.size = size; this.color = color; } } and the code fragment: List<Block> blocks = new ArrayList<>(); blocks.add(new Block(10, "Green")); blocks.add(new Block(7, "Red")); blocks.add(new Block(12, "Blue")); Collections.sort(blocks, new ColorSorter()); Which definition of the ColorSorter class sorts the blocks list?

Given that `version.txt` is accessible and contains: `1234567890` and given the code fragment: ```java try (FileInputStream fis = new FileInputStream("version.txt"); InputStreamReader isr = new InputStreamReader(fis); BufferedReader br = new BufferedReader(isr)) { if (br.markSupported()) { System.out.print(char) br.read()); br.mark(2); System.out.print(char) br.read()); br.reset(); System.out.print(char) br.read()); } } catch (Exception e) { e.printStackTrace(); } ``` What is the result?

Given the EMPLOYEE table: EMP_ID | EMP_NAME -------|--------- 100 | Tom 101 | Mary 102 | Peter 103 | Robin Given the code fragment: try (Connection con = DriverManager.getConnection (dbURL, user, passwd)); { Statement stmt = con.createStatement (ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE); ResultSet rs = stmt.executeQuery ("SELECT * FROM employees"); rs.absolute (3); // Line1 rs.moveToInsertRow(); rs.updateInt(1, 104); rs.updateString(2, "Michael"); rs.insertRow(); rs.moveToCurrentRow(); System.out.println ("Employee Id: " + rs.getInt(1) + ", Employee Name: " + rs.getString(2)); } Assuming the database supports scrolling and updating, what is the result?

In 2015, daylight saving time in New York, USA, begins on March 8th at 2:00 AM. As a result, 2:00 AM becomes 3:00 AM. Given the code fragment: ZonedId zone = ZoneId.of("America/New_York"); ZonedDateTime dt = ZonedDateTime.of(LocalDate.of(2015, 3, 8), LocalTime.of(1, 0), zone); ZonedDateTime dt2 = dt.plusHours(2); System.out.print(DateTimeFormatter.ofPattern("H:mm - ").format(dt2)); System.out.print(ChronoUnit.HOURS.between(dt, dt2)); What is the result?