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

Given the code fragment:

Stream files = Files.walk(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:

public final class IceCream {

public void prepare() {}

}

public class Cake {

public final void bake(int min, int temp) {}

public void mix() {}

}

public class Shop {

private Cake c = new Cake ();

private final double discount = 0.25;

public void makeReady () { c.bake(10, 120); }

}

public class Bread extends Cake {

public void bake(int minutes, int temperature) {}

public void addToppings() {}

}

Which statement is true?

Given the code fragment:

What is the result?

Given:

class Vehicle implements Comparable{

int vno;

String name;

public Vehicle (int vno, String name) {

this.vno = vno,;

this.name = name;

}

public String toString () {

return vno + “:” + name;

}

public int compareTo(Vehicle o) {

return this.name.compareTo(o.name);

}

and this code fragment:

Set vehicles = new TreeSet <> ();

vehicles.add(new Vehicle (10123, “Ford”));

vehicles.add(new Vehicle (10124, “BMW”));

System.out.println(vehicles);

What is the result?