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New 1z1-819 Exam Questions - Test 1z1-819 Study Guide

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>> New 1z1-819 Exam Questions <<

Test 1z1-819 Study Guide - 1z1-819 Accurate Answers

Here, we provide you with 1z1-819 accurate questions & answers which will be occurred in the actual test. About explanations, the difficult issues will be along with detail explanations, so that you can easy to get the content of our Oracle 1z1-819 pdf vce and have a basic knowledge of the key points. Besides, you can choose the 1z1-819 Vce Format files for simulation test. It can help you enhance your memory and consolidate the knowledge, thus the successful pass is no longer a difficult thing.

Oracle 1z1-819 exam is a certification exam for Java developers who want to demonstrate their proficiency in Java SE 11 development. 1z1-819 exam is designed to test the knowledge and skills of developers in various areas, including Java syntax and constructs, object-oriented programming, concurrency, I/O and NIO API, JDBC API, and more. Candidates who Pass 1z1-819 Exam will earn the Oracle Certified Professional: Java SE 11 Developer certification.

Oracle Java SE 11 Developer Sample Questions (Q54-Q59):

NEW QUESTION # 54
Given:

What is the result?

A. Keys: 0 Values: 0 Map:
B. Keys: 0 Values: 0 Map: 0
C. Keys: 4 Values: 4 Map: 0
D. The compilation fails.
E. Keys: 4 Values: 4 Map: 4

Answer: E

NEW QUESTION # 55
Which two expressions create a valid Java Path instance? (Choose two.)

A. Path.get(new URI("file:///domains/oracle/test.txt"))
B. Paths.get(URL.create("file:///domains/oracle/test.txt"))
C. new Path("foo")
D. Paths.getPath("too")
E. Paths.get("foo")

Answer: B,E

NEW QUESTION # 56
Given:

What is the output?

A. Bonjour le monde!Hello world!
B. Hello world!Hello world!
C. Bonjour le monde!Bonjour le monde!
D. Hello world!Bonjour le monde!

Answer: A

Explanation:

NEW QUESTION # 57
Given:

And the command:
java Main Helloworld
What is the result ?

A. Input:
Then block until any input comes from System.in.
B. Input:
Echo: Helloworld
C. A NullPointerException is thrown at run time.
D. Input: Helloworld Echo: Helloworld
E. Input: Echo:

Answer: A

Explanation:

NEW QUESTION # 58
Given:

You want the code to produce this output:
John
Joe
Jane
Which code fragment should be inserted on line 1 and line 2 to produce the output?

A. Insert Comparator<Person> on line 1.
Insert
public int compareTo(Person person) {
return person.name.compareTo(this.name);
}
on line 2.
B. Insert Comparable<Person> on line 1.
Insert
public int compare(Person p1, Person p2) {
return p1.name.compare(p2.name);
}
on line 2.
C. Insert Comparator<Person> on line 1.
Insert
public int compare(Person person) {
return person.name.compare(this.name);
}
on line 2.
D. Insert Comparator<Person> on line 1.
Insert
public int compare(Person p1, Person p2) {
return p1.name.compare(p2.name);
}
on line 2.

Answer: A

NEW QUESTION # 59
......

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