Free Access Oracle.1z0-809.v2026-07-12.q181 Practice Test (Page 23)

Question 106

Given the code fragment:

You have been asked to define the ProductCode class. The definition of the ProductCode class must allow c1 instantiation to succeed and cause a compilation error on c2 instantiation.
Which definition of ProductCode meets the requirement?

Question 107

Which three statements describe the object-oriented features of the Java language?

A.A main method must be declared in every class.

B.Objects can share behaviors with other objects.

C.object. is the root class of all other objects.

D.A subclass can inherit from a superclass.

E.Objects cannot be reused.

F.A package must contain more than one class.

Question 108

Given the code fragment:

Which code fragment, when inserted at line n1, ensures false is printed?

A.boolean b = cs.stream() .findFirst() .get() .equals("Java");

B.boolean b = cs.stream() .anyMatch (w -> w.equals ("Java"));

C.boolean b = cs.stream() .allMatch(w -> w.equals("Java"));

D.boolean b = cs.stream() .findAny() .get() .equals("Java");

Question 109

Given:

Which two interfaces can you use to create lambda expressions? (Choose two.)

A.P

B.T

C.S

D.U

E.Q

F.R

Question 110

Given the code fragment:

What is the result?

A.Compilation fails.

B.1 3
followed by an ArrayIndexOutOfBoundsException

C.1 3
1 3

D.1 3 5 7
1 3

E.1 3
1 3 0 0

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Question 106

Question 107

Question 108

Question 109

Question 110

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