Oracle Updated 1z0-809 Exam Questions and Answers by dawid

Given the code fragment:

List empDetails = Arrays.asList(“100, Robin, HR”,

“200, Mary, AdminServices”,

“101, Peter, HR”);

empDetails.stream()

.filter(s-> s.contains(“1”))

.sorted()

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

What is the result?

Given the code fragment:

Stream files = Files.list(Paths.get(System.getProperty(“user.home”)));

files.forEach (fName -> {//line n1

try {

Path aPath = fName.toAbsolutePath();//line n2

System.out.println(fName + “:”

+ Files.readAttributes(aPath, Basic.File.Attributes.class).creationTime

());

} catch (IOException ex) {

ex.printStackTrace();

});

What is the result?

Given the code fragment:

BiFunction val = (t1, t2) -> t1 + t2;//line n1

System.out.println(val.apply(10, 10.5));

What is the result?

Given:

class UserException extends Exception { }

class AgeOutOfLimitException extends UserException { }

and the code fragment:

class App {

public void doRegister(String name, int age)

throws UserException, AgeOutOfLimitException {

if (name.length () <= 60) {

throw new UserException ();

} else if (age > 60) {

throw new AgeOutOfLimitException ();

} else {

System.out.println(“User is registered.”);

}

}

public static void main(String[ ] args) throws UserException {

App t = new App ();

t.doRegister(“Mathew”, 60);

}

}

What is the result?