Online Access Free 1Z1-816 Exam Questions

Given:

You want to obtain the Stream object on reading the file. Which code inserted on line 1 will accomplish this?

• A.Stream lines = Files.readAllLines(Paths.get(INPUT_FILE_NAME));
• B.var lines = Files.lines(Paths.get(INPUT_FILE_NAME));
• C.Stream<String> lines = Files.lines(INPUT_FILE_NAME);
• D.var lines = Files.readAllLines(Paths.get(INPUT_FILE_NAME));

Given:
var fruits = List.of("apple", "orange", "banana", "lemon");
You want to examine the first element that contains the character n. Which statement will accomplish this?

• A.Optional<String> result = fruits.stream().anyMatch(f -> f.contains("n"));
• B.Optional<String> result = fruits.stream().filter(f -> f.contains ("n")).findFirst ();
• C.String result = fruits.stream().filter(f -> f.contains("n")).findAny();
• D.fruits.stream().filter(f -> f.contains("n")).forEachOrdered(System.out::print);

Consider this method declaration:

A) "SET SESSION AUTHORIZATION " + user
B) "SET SESSION AUTHORIZATION " + stmt.enquoteIdentifier(user)
Is A or B the correct replacement for <EXPRESSION> and why?

• A.B, because all values provided by the calling code should be enquoted.
• B.A and B are functionally equivalent.
• C.A, because it is unnecessary to enclose identifiers in quotes.
• D.B, because enquoting values provided by the calling code prevents SQL injection.
• E.A, because it sends exactly the value of user provided by the calling code.

Which code fragment compiles?

• A.Option C
• B.Option B
• C.Option A
• D.Option D

Which code fragment does a service use to load the service provider with a Print interface?

• A.private java.util.ServiceLoader<Print> loader = ServiceLoader.load (Print.class);
• B.private Print print = com.service.Provider.getInstance();
• C.private Print print = new com.service.Provider.PrintImpl();
• D.private java.util.ServiceLoader<Print> loader = new java.util.ServiceLoader<> ();