1Z0-819 Real Exam Questions

Given public class Employee { private String name; private LocalDate birthday; // the constructors, getters, and setters methods go here } and List<Employee> roster = new ArrayList<>(); // ... Predicate<Employee> p = (Employee e) -> e.getBirthday(). isBefore(IsoChronology. INSTANCE.date(1989, 1, 1)); Set<String> s1 = roster.stream() . filter(p) Which code fragment on line 1 makes the s1 set contain the names of all employees born before January 1, 1989?

Which code fragment compiles?

Assume db is a DataSource and the EMP table is defined appropriately. try (Connection conn = ds.getConnection(); PreparedStatement ps = conn.prepareStatement("INSERT INTO EMP VALUES(?, ?, ?)")) { ps.setObject(1, 101, JDBCType.INTEGER); ps.setObject(2, "SMITH", JDBCType.VARCHAR); ps.setObject(3, "HR", JDBCType.VARCHAR); ps.executeUpdat e(); ps.setint(1, 102); ps.setString(2, "JONES"); ps.executeUpdate(); } What does executing this code fragment do?

Given: public class Test { public static void main(String[] args) { AnotherClass ac = new AnotherClass(); SomeClass sc = new AnotherClass(); ac = sc; sc.methodA(); ac.methodA(); } } class SomeClass { public void methodA() { System.out.println("SomeClass#methodA() "); } } class AnotherClass extends SomeClass { public void methodA() { System.out.println("AnotherClass#methodA() "); } } What is the result?

Given: public class Main { public static void main(String[] args) { List<String> list1 = new ArrayList<>(); list1.add("Plane"); list1.add("Automobile"); list1.add("Motorcycle"); List<String> list2 = new ArrayList<>(List.copyOf(list1)); list1.sort((String item1, String item2) -> item1.compareTo(item2)); list2.sort((String item1, String item2) -> item1.compareTo(item2)); System.out.println(list1.equals(list2)); } } What is the result?