Java SE 8 Programmer I (1z1-808) Free Practice Test

Question 1

Given the code fragments:

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

A. checkAge (iList, ( ) -> p. get Age ( ) > 40);

B. checkAge(iList, Person p -> p.getAge( ) > 40);

C. checkAge (iList, p -> p.getAge ( ) > 40);

D. checkAge(iList, (Person p) -> { p.getAge() > 40; });

Correct Answer: C

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Question 2

Given the code fragment

Which code fragments, inserted independently, enable the code compile? (Choose 3)

A. cvar = 400;

B. t.fvar = 200;

C. t.fvar = 200;
Test2.cvar = 400;

D. fvar = 200;
cvar = 400;

E. this.fvar = 200;
Test2.cvar = 400;

F. this.fvar = 200;
this.cvar = 400;

Correct Answer: A,B,C

Question 3

Given:

What is the result?

A. Marrown
NanRed
JesOran

B. Marrown
String out of limits
Array out of limits

C. Marrown
String out of limits
JesOran

D. Marrown
String out of limits

Correct Answer: C

Question 4

Which three statements are benefits of encapsulation?

A. allows a class implementation to change without changing t he clients

B. enables multiple instances of the same class to be created safely

C. protects confidential data from leaking out of the objects

D. enables the class implementation to protect its invariants

E. prevents code from causing exceptions

F. permits classes to be combined into the same package

Correct Answer: A,C,D

Question 5

Given the code fragment:

Which code snippet at line 9 prints true?

A. Option D

B. Option C

C. Option A

D. Option B

Correct Answer: D

Question 6

You are asked to develop a program for a shopping application, and you are given the following information:
- The application must contain the classes Toy, EduToy, and consToy.
- The Toy class is the superclass of the other two classes.
- The int caicuiatePrice (Toy t) method calculates the price of a toy.
- The void printToy (Toy t) method prints the details of a toy.
Which definition of the Toy class adds a valid layer of abstraction to the class hierarchy?

A. Option D

B. Option C

C. Option A

D. Option B

Correct Answer: C

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Question 7

Given the code fragment:

And given the requirements:
- If the value of the qty variable is greater than or equal to 90,
discount = 0.5
- If the value of the qty variable is between 80 and 90, discount = 0.2 Which two code fragments can be independently placed at line n1 to meet the requirements?

A. Option E

B. Option D

C. Option C

D. Option A

E. Option B

Correct Answer: C,D

Question 8

Given the code fragment:

What is the result?

A. [1, 2, 4, null ]

B. A NullPointerException is thrown at runtime.

C. [1, 3, 4 ]

D. [1, 2, 4]

E. [1, 3, 4, null ]

F. Compilation fails.

Correct Answer: D

Question 9

Given:

What is the result?

A. Compilation fails at line n1 and line n2

B. C

C. A B C

D. C B A

Correct Answer: D

Question 10

Given:

What is the result?

A. An exception is thrown at runtime.

B. Compilation fails.

C. 10 20 30 40

D. 0 0 30 40

Correct Answer: D

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Oracle Java SE 8 Programmer I (1z1-808) Free Practice Test