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1z0-808 Oracle Java SE 8 Programmer I Free Practice Exam Questions (2025 Updated)

Prepare effectively for your Oracle 1z0-808 Java SE 8 Programmer I certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.

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Total 224 questions

Given:

What is the result?

A.

Compilation fails at line n3 and line n4.

B.

Compilation fails at line n1 and line n2.

C.

Welcome Visit Count:1Welcome Visit Count: 1

D.

Welcome Visit Count:1Welcome Visit Count: 2

Which statement is true about the main() method?

A.

It is invoked by JRE

B.

It is a final method

C.

It returns true if it is executed successfully at run time

D.

It must be defined within a public class

Given the code fragment:

What is the result?

A.

It results in a compile time error at line 18.

B.

It results in a compile time error at line 9.

C.

It prints : 1

D.

It results in a compile time error at lines at lines 12 and 15.

Given the code fragment:

What is the result?

A.

Compilation fails.

B.

The program compiles, but it prints nothing.

C.

HiHowAreYou removed

D.

An UnsupportedOperationException is thrown at runtime.

Given this class:

Which two changes would encapsulate this class and ensure that the area field is always equal to length * height whenever the Rectangle class is used?

A.

Call the setArea method at the end of the setHeight method.

B.

Call the setArea method at the beginning of the setHeight method.

C.

Call the setArea method at the end of the setLength method.

D.

Call the setArea method at the beginning of the setLength method.

E.

Change the setArea method to private.

F.

Change the area field to public.

Given the code fragment:

Which code fragment, when inserted at line n1, enables the App class to print Equal?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Given the code fragments:

Which code fragment, when inserted at line n1, enables the code to print Hank?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Given the code fragment:

What is the result?

A.

A B C

B.

A B C D E

C.

A B D E

D.

Compilation fails.

Given the code fragment:

What is the result?

A.

1 2 3 4followed by an ArrayIndexOutOfBoundsException

B.

1 2 3

C.

1 2 3 4

D.

Compilation fails.

Examine the given definitions:

and the code fragment:

Which statement is true about the implementation of Object-Oriented Programming concepts in the given code?

A.

Polymorphism, abstraction, and encapsulation are implemented.

B.

Only polymorphism and inheritance are implemented.

C.

Polymorphism, inheritance, and abstraction are implemented.

D.

Only inheritance and encapsulation are implemented.

Given the code fragment:

Which action enables the code to print Helping… Done?

A.

replace class Humanoid extends Robot {

with abstract class Humanoid extends Robot {

B.

replace interface Speakable {

with abstract class Speakable

C.

replace public void process();

with public abstract void process();

D.

replace abstract class Robot implements Speakable {

with class Robot extends Speakable {

Given:

And given the code fragment:

What is the result?

A.

300:300200:300

B.

300:100200:300

C.

300:00:300

D.

100:300300:200

Given the following code:

What is the output?

A.

44

B.

35

C.

47

D.

54

E.

45

F.

421

Given the code fragment:

What is the result?

A.

Compilation fails at both line n1 and line n2.

B.

Compilation fails only at line n2.

C.

Compilation fails only at line n1.

D.

Jesse 25Walter 52

Given these classes:

And given this main method:

Which two options compile when placed at line n1 of the main method? (Choose two.)

A.

director.stockOptions = 1_000;

B.

employee.salary = 50_000;

C.

manager.budget = 1_000_000;

D.

manager.stockOption = 500;

E.

employee.budget = 200_000;

F.

director.salary = 80_000;

Given the code fragment:

Which two modifications, when made independently, enable the code to print Joe:true: 100.0? (Choose two.)

A.

Option A

B.

Option B

C.

Option C

D.

Option D

E.

Option E

Which two features can be implemented in a Java application by encapsulating the entity classes used? (Choose two.)

A.

data validation

B.

compile time polymorphism

C.

data hiding

D.

data abstraction

E.

data memory optimization

Given the code fragment:

Which code fragment prints red: blue: small: medium?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Given the code fragment:

What is the result?

A.

3

B.

4

C.

-1

D.

Compilation fails.

Given the code fragment:

What is the result?

A.

100

B.

101

C.

102

D.

103

E.

Compilation fails

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Total 224 questions
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