Free Oracle 1Z0-819 Exam Questions

Become Oracle Certified with updated 1Z0-819 exam questions and correct answers

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Total 515 Questions | Updated On: Jan 09, 2025

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Question 1

Given:

What is the result?

A : 2134

B : 234

C : 2341

D : 214

Answer: A

Question 2

Given the code fragment:

What is the result?

A : false true true

B : true false false

C : false false true

D : false true false

Answer: D

Question 3

Which method throws an exception for not-a-number and infinite input values?

A :

B :

C :

D :

Answer: A

Question 4

var numbers = List.of(0,1,2,3,4,5,6,7,8,9);

You want to calculate the average of numbers. Which two codes will accomplish this? (Choose two.)

A : uble avg = numbers.stream().parallel().averagingDouble(a > a);

B : uble avg = numbers.parallelStream().mapToInt (m > m).average().getAsDouble ();

C : uble avg = numbers.stream().mapToInt (i > i).average().parallel();

D : uble avg = numbers.stream().average().getAsDouble();

E : uble avg = numbers.stream().collect(Collectors.averagingDouble(n > n));

Answer: B,D

Question 5

What is the result?

A : 9001: java.io.FileNotFoundException: MyFile.txt-MyFile.txt

B : 9001: APPLICATION ERROR-9001-MyFile.txt 9001: java.io.FileNotFoundException: MyFile.txt-MyFile.txt

C : 9001: APPLICATION ERROR-9001-MyFile.txt

D : Compilations fails at Line 1.

Answer: D

Page: 1 / 103

Total 515 Questions | Updated On: Jan 09, 2025

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