Free 1Z0-850 Questions for Oracle Java Standard Edition 5 and 6, Certified Associate 1Z0-850 Exam as PDF & Practice Test Engine

Exam Code/Number: 1Z0-850
Exam Name/Title: Java Standard Edition 5 and 6, Certified Associate Exam
Certification Provider: Oracle
Corresponding Certification: Java Technology

Exam Questions: 242
Updated On: May 26, 2026

Question #1

Which two are true about the composition relationship "A Blip consists of many Blipverts."?
(Choose two.)

A. A Blipvert can be a part of only one Blip.

B. A Blip must have at least two Blipverts.

C. When a Blip is deleted, each of its Blipverts should also be deleted.

D. A Blipvert must be part of at least one Blip.

E. When a Blipvert is deleted, its Blip should also be deleted.

Discussion 0

Correct Answer: A,C Vote an answer

Question #2

Which two are valid? (Choose two.)

A. enum Suit { CLUBS, DIAMONDS, HEARTS, SPADES }
class EnumTest {
public static void main(String args[]) {
System.out.println(Suit.CLUBS);
}

B. class EnumTest {
enum Days { Sat, Sun, Mon, Tue, Wed, Thu, Fri }
public static void main(String args[]) {
System.out.println(Days.Sat);
}

C. class EnumTest {
enum Colors { Red = 1, Green = 2, Blue = 4, Yellow = 8 }
public static void main(String args[]) {
System.out.println(Colors.Red);
}

D. class EnumTest {
public static void main(String args[]) {
enum Num { ONE, TWO, THREE, FOUR }
System.out.println(Num.ONE);
}

Discussion 0

Correct Answer: A,B Vote an answer

Question #3

Click the Exhibit button. Which is true about the use of italics in this diagram?

A. The use of italics indicates that Blipvert is a final class.

B. The use of italics indicates that Blipvert is an abstract class.

C. The use of italics indicates that Blipvert is an enumeration.

D. The use of italics carries no standard UML meaning.

E. The use of italics indicates that Blipvert is an interface.

Discussion 0

Correct Answer: B Vote an answer

Question #4

A Java programmer wants to develop a stand-alone, desktop, word processing application.
Which Java edition (or editions) are appropriate to develop this application?

A. only J2ME

B. J2EE and J2ME

C. only J2SE

D. only J2EE

E. J2SE and J2EE

F. J2SE and J2ME

Discussion 0

Correct Answer: C Vote an answer

Question #5

Which two are true? (Choose two.)

A. An interface can be extended by an abstract class.

B. An abstract class can implement an interface.

C. An abstract class can be extended by a concrete class.

D. An abstract class can be extended by an interface.

E. An interface CANNOT be extended by another interface.

F. An abstract class CANNOT be extended by an abstract class.

Discussion 0

Correct Answer: B,C Vote an answer

Question #6

Which two are true about HTML? (Choose two.)

A. HTML is an object-oriented programming language.

B. HTML uses tags to structure text into headings, paragraphs, and lists.

C. HTML documents CANNOT be browsed by a text editor.

D. HTML can set up hypertext links between documents.

Discussion 0

Correct Answer: B,D Vote an answer

Question #7

Given:
1. abstract class A {}
2 . class B {}
3 . interface C {}
4 . interface D {}
5 . // insert code here
Which, inserted at line 5, results in a compilation failure?

A. interface E extends C, D {}

B. class E implements C, D {}

C. class E extends A {}

D. class E extends A, B {}

E. class E implements C {}

F. class E extends B implements D {}

Discussion 0

Correct Answer: D Vote an answer

Question #8

Which two are true about javax.swing? (Choose two.)

A. It includes classes for creating buttons and panels.

B. It is used to create applications that have the same user interface on different platforms.

C. It uses the native GUI components of each platform.

D. It is used to create MIDlets.

Discussion 0

Correct Answer: A,B Vote an answer

Question #9

Given:
1. interface Movable {
2. void move();
3. void stop();
4. }
Which is valid?

A. public class Bicycle implements Movable {
void move() { /*...*/ }
void stop() { /*...*/ }

B. public class Bicycle extends Movable {
public void move() { /*...*/ }
public void stop() { /*...*/ }

C. public class Bicycle implements Movable {
public void move() { /*...*/ }
public void stop() { /*...*/ }

D. public class Bicycle implements Movable {
public void move() { /*...*/ }

Discussion 0

Correct Answer: C Vote an answer

Question #10

You need to create a class Foo that will record the number of times the go() method is invoked on a particular instance of the class. Which solution correctly implements this goal?

A. Declare a static variable invokeCount for the class Foo, and increment the variable within the go() method.

B. Declare an instance variable invokeCount for the class Foo, and increment the variable within the go() method.

C. Declare a local variable invokeCount inside the go() method, and increment the variable within the go() method.

D. Declare a method parameter invokeCount as the argument to the go() method, and increment the variable within the go() method.

Discussion 0

Correct Answer: B Vote an answer

Question #11

Which four are legal declarations? (Choose four.)

A. String st == "Hello";

B. String st = 'Hello';

C. String st = new String("Hello");

D. String[] st = new String[1];

E. String st = null;

F. String st = "Hello";

G. String st == 'Hello';

Discussion 0

Correct Answer: C,D,E,F Vote an answer

Question #12

Given:
1 . class Book {
2 . public String title;
3 .
4 . public void setTitle(String title) {
5 . if (checkTitle(title)) this.title = title;
6 . }
7 . public String getTitle() {
8 . return title;
9 . }
1 0. private boolean checkTitle(String newTitle) {
1 1. // code that verifies proposed title change
1 2. }
1 3. }
Which two are true? (Choose two.)

A. The Book class adheres to the JavaBeans naming conventions.

B. The checkTitle method can be accessed from outside the Book class.

C. The Book class does NOT provide information hiding.

D. The Book class demonstrates encapsulation.

E. The title attribute is protected from direct modification by outside code.

Discussion 0

Correct Answer: A,C Vote an answer

Question #13

A business-tier service is being developed that will provide credit card validation. The service is not associated with a specific client, but is available to all clients. The service also has to be as efficient as possible. Which J2EE component matches these needs?

A. stateless session bean

B. stateful session bean

C. entity bean

D. JNDI

E. servlet

Discussion 0

Correct Answer: A Vote an answer

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