1Z0-809 Exam Questions and Answers | Exam-Dumps (Page: 7)

QUESTION: 31

Given the code fragment:
Stream<Path> 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?

All files and directories under the home directory are listed along with their attributes.
A compilation error occurs at line n1.
The files in the home directory are listed along with their attributes.
A compilation error occurs at line n2.

Answer(s): A

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QUESTION: 32

Given:
class Vehicle {
int vno;
String name;

public Vehicle (int vno, String name) {
this.vno = vno,;
this.name = name;
}
public String toString () {
return vno + “:” + name;
}
}

and this code fragment:

Set<Vehicle> vehicles = new TreeSet <> ();
vehicles.add(new Vehicle (10123, “Ford”));
vehicles.add(new Vehicle (10124, “BMW”));
System.out.println(vehicles);

What is the result?

10123 Ford 10124 BMW
10124 BMW 10123 Ford
A compilation error occurs.
A ClassCastException is thrown at run time.

Answer(s): D

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QUESTION: 33

Given that course.txt is accessible and contains:

Course : : Java

and given the code fragment:

public static void main (String[ ] args) {
int i;
char c;
try (FileInputStream fis = new FileInputStream (“course.txt”);
InputStreamReader isr = new InputStreamReader(fis);) {
while (isr.ready()) { //line n1
isr.skip(2);
i = isr.read ();
c = (char) i;
System.out.print(c);
}
} catch (Exception e) {
e.printStackTrace();
}
}

What is the result?

ur :: va
ueJa
The program prints nothing.
A compilation error occurs at line n1.

Answer(s): B

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QUESTION: 34

Given:
public class Test<T> {
private T t;
public T get () {
return t;
}
public void set (T t) {
this.t = t;
}
public static void main (String args [ ] ) {
Test<String> type = new Test<>();
Test type 1 = new Test (); //line n1
type.set(“Java”);
type1.set(100); //line n2
System.out.print(type.get() + “ “ + type1.get());
}
}

What is the result?

Java 100
java.lang.string@<hashcode>java.lang.Integer@<hashcode>
A compilation error occurs. To rectify it, replace line n1 with:
Test<Integer> type1 = new Test<>();
A compilation error occurs. To rectify it, replace line n2 with:
type1.set (Integer(100));

Answer(s): A

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QUESTION: 35

Given the definition of the Vehicle class:
class Vehicle {
String name;
void setName (String name) {
this.name = name;
}
String getName() {
return name;
}
}

Which action encapsulates the Vehicle class?

Make the Vehicle class public.
Make the name variable public.
Make the setName method public.
Make the name variable private.
Make the setName method private.
Make the getName method private.

Answer(s): D

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Oracle 1Z0-809 Exam (page: 7) Oracle Java SE 8 Programmer II Updated on: 28-Nov-2025

QUESTION: 31

QUESTION: 32

QUESTION: 33

QUESTION: 34

QUESTION: 35

Oracle 1Z0-809 Exam (page: 7)
Oracle Java SE 8 Programmer II
Updated on: 28-Nov-2025