Free Download 1Z0-819 Examp Dump: Oracle.1Z0-819.VCEplus.2021-07-08.50q.vcex

File Info

Exam	Java SE 11 Developer
Number	1Z0-819
File Name	Oracle.1Z0-819.VCEplus.2021-07-08.50q.vcex
Size	7 MB
Posted	Jul 08, 2021
Download	Oracle.1Z0-819.VCEplus.2021-07-08.50q.vcex

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Demo Questions

Question 1

Given:

What is the result?

2-4
0-6
1-5
2-4
1-5
1-5
2-4
The compilation fails due to an error in line 1.
0-6
0-6
2-4

Correct answer: C

Explanation:

Question 2

Given:

What is the result?

5 4 3 2 1
5
nothing
5 4 3 2 1 4 3 2 1 3 2 1 2 1 1

Correct answer: C

Explanation:

Question 3

Given:

and

Which two method definitions at line n1 in the Bar class compile? (Choose two.)

public List<Number> foo(Set<String> m) {...}
public List<Integer> foo(Set<CharSequence> m) {...}
public List<Integer> foo(TreeSet<String> m) {...}
public List<Object> foo(Set<CharSequence> m) {...}
public ArrayList<Integer> foo(Set<String> m) {...}
public ArrayList<Number> foo(Set<CharSequence> m) {...}

Correct answer: CF

Question 4

Given:

What is the result?

5
4
3
An exception is thrown at runtime

Correct answer: B

Explanation:

Question 5

Given the code fragment:

What is the result?

0 8 10
0
The code prints nothing.
0 4 9
0 8

Correct answer: E

Explanation:

Question 6

Given the code fragment:

You want to display the value of currency as $100.00.

Which code inserted on line 1 will accomplish this?

NumberFormat formatter = NumberFormat.getInstance(locale).getCurrency();
NumberFormat formatter = NumberFormat.getCurrency(locale);
NumberFormat formatter = NumberFormat.getInstance(locale);
NumberFormat formatter = NumberFormat.getCurrencyInstance(locale);

Correct answer: A

Explanation:

Reference: https://zetcode.com/java/numberformat/

Question 7

Which three initialization statements are correct? (Choose three.)

int[][][] e = {{1,1,1},{2,2,2}};
short sh = (short)’A’;
float x = 1f;
byte b = 10; char c = b;
String contact# = “(+2) (999) (232)”;
int x = 12_34;
boolean false = (4 != 4);

Correct answer: BCF

Explanation:

Reference: https://www.hudatutorials.com/java/basics/java-arrays/java-short-array

Question 8

Your organization makes mlib.jar available to your cloud customers.

While working on a new feature for mlib.jar, you see that the customer visible method public void enableService(String hostName, String portNumber) executes this code fragment and you see this grant is in the security policy file: