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Oracle Java SE 8 Programmer II Sample Questions (Q50-Q55):

NEW QUESTION # 50
Given the code fragments:
class Employee {
Optional<Address> address;
Employee (Optional<Address> address) {
this.address = address;
}
public Optional<Address> getAddress() { return address; }
}
class Address {
String city = “New York”;
public String getCity { return city: }
public String toString() {
return city;
}
}
and
Address address = null;
Optional<Address> addrs1 = Optional.ofNullable (address);
Employee e1 = new Employee (addrs1);
String eAddress = (addrs1.isPresent()) ? addrs1.get().getCity() : “City Not available”; What is the result?

A. null
B. New York
C. City Not available
D. A NoSuchElementException is thrown at run time.

Answer: C

NEW QUESTION # 51
Given the records from the STUDENTtable:

Given the code fragment:

Assume that the URL, username,and passwordare valid.
What is the result?

A. The STUDENT table is not updated and the program prints:
114 : John : john@uni.com
B. The STUDENTtable is updated with the record:
113 : Jannet : jannet@uni.com
and the program prints:
113 : Jannet : jannet@uni.com
C. A SQLExceptionis thrown at run time.
D. The STUDENTtable is updated with the record:
113 : Jannet : jannet@uni.com
and the program prints:
114 : John : john@uni.com

Answer: C

Explanation:
Explanation/Reference:

NEW QUESTION # 52
Given the code fragment:
List<Integer> codes = Arrays.asList (10, 20);
UnaryOperator<Double> uo = s -> s +10.0;
codes.replaceAll(uo);
codes.forEach(c -> System.out.println(c));
What is the result?

A. A compilation error occurs.
B. 20.0
30.0
C. 10
20
D. A NumberFormatException is thrown at run time.

Answer: B

NEW QUESTION # 53
Given the code fragment:

Assume that the value of now is 6:30 in the morning.
What is the result?

A. 0
B. An exception is thrown at run time.
C. 1
D. 2

Answer: C

NEW QUESTION # 54
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:

Which is the result?

A. 4:00 - difference: 3
B. 4:00 - difference: 2
C. 3:00 - difference: 2
D. 2:00 - difference: 1

Answer: D

NEW QUESTION # 55
......

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