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Oracle Java SE 8 Programmer II Sample Questions (Q196-Q201):

NEW QUESTION # 196
Given the code fragment:

What is the result?

A. 10 : 10
B. Compilation fails.
C. 5 : 10
D. 5 : 5

Answer: A

NEW QUESTION # 197
Given:
public class Foo<K, V> {
private K key;
private V value;
public Foo (K key, V value) (this.key = key; this value = value;)
public static <T> Foo<T, T> twice (T value) (return new Foo<T, T> (value, value); )
public K getKey () (return key;)
public V getValue () (return value;)
}
Which option fails?

A. Foo<String, String> grade = new Foo <> ("John", "A");
B. Foo<String, String> pair = Foo.<String>twice ("হ্যালো World!");
C. Foo<String, Integer> mark = new Foo<String, Integer> ("Steve", 100);
D. Foo<?, ?> percentage = new Foo <> (97, 32);

Answer: D

NEW QUESTION # 198
Given the code fragment:
Stream<List<String>> iStr= Stream.of (
Arrays.asList ("1", "John"),
Arrays.asList ("2", null)0;
Stream<<String> nInSt = iStr.flatMapToInt ((x) -> x.stream ());
nInSt.forEach (System.out :: print);
What is the result?

A. 0
B. 1John2null
C. A compilation error occurs.
D. A NullPointerException is thrown at run time.

Answer: C

NEW QUESTION # 199
Given:
class FuelNotAvailException extends Exception { }
class Vehicle {
void ride() throws FuelNotAvailException {//line n1
System.out.println("Happy Journey!");
}
}
class SolarVehicle extends Vehicle {
public void ride () throws Exception {//line n2
super ride ();
}
}
and the code fragment:
public static void main (String[] args) throws FuelNotAvailException, Exception {
Vehicle v = new SolarVehicle ();
v.ride();
}
Which modification enables the code fragment to print Happy Journey!?

A. Replace line n1 with protected void ride() throws Exception {
B. Replace line n2 with void ride() throws Exception {
C. Replace line n1 with public void ride() throws FuelNotAvailException {
D. Replace line n2 with private void ride() throws FuelNotAvailException {

Answer: A

NEW QUESTION # 200
Given the code fragment:
9 . Connection conn = DriveManager.getConnection(dbURL, userName, passWord);
1 0. String query = "SELECT id FROM Employee";
1 1. try (Statement stmt = conn.createStatement()) {
1 2. ResultSet rs = stmt.executeQuery(query);
1 3. stmt.executeQuery("SELECT id FROM Customer");
1 4. while (rs.next()) {
1 5. //process the results
1 6. System.out.println("Employee ID: "+ rs.getInt("id"));
1 7. }
1 8. } catch (Exception e) {
1 9. System.out.println ("Error");
2 0. }
Assume that:
The required database driver is configured in the classpath.
The appropriate database is accessible with the dbURL, userName, and passWordexists.
The Employeeand Customertables are available and each table has id column with a few records and the SQL queries are valid.
What is the result of compiling and executing this code fragment?

A. The program prints customer IDs.
B. The program prints Error.
C. compilation fails on line 13.
D. The program prints employee IDs.

Answer: C

NEW QUESTION # 201
......

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Oracle Java SE 8 Programmer II Sample Questions (Q196-Q201):

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