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QUESTION 49
Given the code fragment:
What is the result?
A. May 04, 2014T00:00:00.000
B. 2014-05-04T00:00: 00. 000
C. 5/4/14T00:00:00.000
D. An exception is thrown at runtime.
Answer: D
Explanation:
The exception java.time.temporal.UnsupportedTemporalTypeException is thrown at runtime.
We should use class LocalDateTime with ISO_DATE_TIME format or use the format ISO_DATE to avoid the exception.
See ISO_DATE_TIME at
https://docs.oracle.com/javase/8/docs/api/java/time/format/DateTimeFormatter.html
See examples at
https://gist.github.com/mscharhag/9195718
QUESTION 50
Given the code fragment:
What is the result?
A. Sum is 600.
B. Compilation fails at line n1.
C. Compilation fails at line n2.
D. A ClassCastException is thrown at line n1.
E. A ClassCastException is thrown at line n2.
Answer: C
Explanation:
Compilation fails at n2 because the compiler cannot cast long to String.
QUESTION 51
What is the name of the Java concept that uses access modifiers to protect variables and hide them within a class?
A. Encapsulation
B. Inheritance
C. Abstraction
D. Instantiation
E. Polymorphism
Answer: A
Explanation:
Using the private modifier is the main way that an object encapsulates itself and hide data from the outside world.
http://www.tutorialspoint.com/java/java_access_modifiers.htm
QUESTION 52
Given the code fragment:
Which two modifications, made independently, enable the code to compile?
A. Make the method at line n1 public.
B. Make the method at line n2 public.
C. Make the method at line n3 public.
D. Make the method at line n3 protected.
E. Make the method at line n4 public.
Answer: CD
Explanation:
We can’t assign weaker privileges in a subclass.
Method revolve() is declared protected in class Planet.
We can declare revolve() as public or protected in class Earth.
QUESTION 53
Given:
And given the code fragment:
What is the result?
A. 4W 100 Auto
4W 150 Manual
B. Null 0 Auto
4W 150 Manual
C. Compilation fails only at line n1
D. Compilation fails only at line n2
E. Compilation fails at both line n1 and line n2
Answer: E
Explanation:
Compilation fails at n1 because Vehicle hasn’t a default constructor
Compilation fails at n2 because this() must be the first statement in constructor body
QUESTION 54
Given the code fragment:
Which two modifications should you make so that the code compiles successfully?
A. Option A
B. Option B
C. Option C
D. Option D
E. Option E
Answer: AC
Explanation:
Add throws clause in both printFileContent and main.
QUESTION 55
Given the following two classes:
How should you write methods in the ElectricAccount class at line n1 so that the member variable bill is always equal to the value of the member variable kwh multiplied by the member variable rate? Any amount of electricity used by a customer (represented by an instance of the customer class) must contribute to the customer’s bill (represented by the member variable bill) through the method useElectricity method. An instance of the customer class should never be able to tamper with or decrease the value of the member variable bill.
A. Option A
B. Option B
C. Option C
D. Option D
Answer: D
QUESTION 56
Given the code fragments:
Which code fragment, when inserted at line n1, enables the code to print Hank?
A. checkAge (iList, ( ) -> p. get Age ( ) > 40);
B. checkAge(iList, Person p -> p.getAge( ) > 40);
C. checkAge (iList, p -> p.getAge ( ) > 40);
D. checkAge(iList, (Person p) -> { p.getAge() > 40; });
Answer: C
Explanation:
https://docs.oracle.com/javase/tutorial/java/javaOO/lambdaexpressions.html
PassLeader now are offering 100% pass ensure 1Z0-808 dumps! All 1Z0-808 exam questions have been updated with correct answers, welcome to download the newest PassLeader 1Z0-808 VCE dumps and PDF dumps: http://www.passleader.com/1z0-808.html (256 Q&As –> 312 Q&As)
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