Java SE 8 Programmer II: 1Z0-809

Given:

IntStream stream = IntStream.of (1,2,3);

IntFunction inFu= x -> y -> x*y; //line n1

IntStream newStream = stream.map(inFu.apply(10)); //line n2

newStream.forEach(System.output::print);

Which modification enables the code fragment to compile?

A. Replace line n1 with: IntFunction inFu = x -> y -> x*y;

B. Replace line n1 with: IntFunction inFu = x -> y -> x*y;

C. Replace line n1 with: BiFunction inFu = x -> y -> x*y;

D. Replace line n2 with: IntStream newStream = stream.map(inFu.applyAsInt (10));

The data.doc, data.txt and data.xml files are accessible and contain text.

Given the code fragment:

Stream paths = Stream.of (Paths. get("data.doc"),

Paths. get("data.txt"),

Paths. get("data.xml"));

paths.filter(s-> s.toString().endWith("txt")).forEach(

s -> {

try {

Files.readAllLines(s)

.stream()

.forEach(System.out::println); //line n1

} catch (IOException e) {

System.out.println("Exception");

}

}

);

What is the result?

A. The program prints the content of data.txt file.

B. The program prints: Exception <> Exception

C. A compilation error occurs at line n1.

D. The program prints the content of the three files.

Given the records from the STUDENT table:

Given the code fragment:

Assume that the URL, username, and password are valid.

What is the result?

A. The STUDENT table is not updated and the program prints:

114 : John : john@uni.com

B. The STUDENT table is updated with the record:

113 : Jannet : jannet@uni.com

and the program prints:

114 : John : john@uni.com

C. The STUDENT table is updated with the record:

113 : Jannet : jannet@uni.com

and the program prints:

113 : Jannet : jannet@uni.com

D. A SQLException is thrown at run time.