[Nov-2021] The Best Oracle Java SE 1z1-819 Professional Exam Questions
Try 100% Updated 1z1-819 Exam Questions [2021]
How to Prepare For Java SE 11 Developer Exam Number: 1Z0-819
Preparation Guide for Java SE 11 Developer Exam Number: 1Z0-819
Introduction for Java SE 11 Developer Exam Number: 1Z0-819
1Z0-006 exam is for those that have completed the Database Foundations, Database Design and Programming with SQL (Oracle Academy training), Oracle Database 12c Administration Workshop or Oracle Database Introduction to SQL training. Passing this exam gives the certification credential demonstrating your understanding of the different types of database models and components. And, you will enhance knowledge of database components, concepts and design, implementation of business roles, SQL language and queries, and ERD modeling and languages to manage data and transactions.
The Java SE 11 Developer Exam Number: 1Z0-819 is recommended for the following candidates who have:
- Have a desire to get Java certified and earn more money
- Be a professional programmer with Java experience
- Preferably have completed all or part of my Java Masterclass here on Udemy (or another Java course)
- Exposure to the Java programming language
- Desirable to have completed some or all of my Java Masterclass
Becoming Java certified is a great way to help improve your career options with more job opportunities and more pay. That’s because Oracle’s Java certification program, unlike many other certifications out there, has real value in the industry. One of the main reasons is that it’s an official Oracle certification, but second, the exam is quite difficult to pass. Employers see programmers who are Java certified as more valuable than programmers who are not certified. So it’s totally worth getting Java certified to take advantage of this.
ORACLE 1Z0-006 practice tests and ORACLE 1Z0-006 practice exams are designed specifically for candidates to gain an uperhand on experience and knowledge to get through this exam.
What is Java SE 11 Developer Exam Number: 1Z0-819 Certification Exam and Retake policy
Oracle Cloud Certification credentials are only valid for a period of 18 months from the date you earn the credential. The certification will become inactive at the end of 18 months. However, for Oracle candidates, it is necessary to hold an active certification in order to have access to various certification benefits including, using Oracle certification logos, certificates, scoring reports, digital badges, and certification verification.
To stay current, candidates have to re-certify themselves with the latest version of the exam. Oracle Cloud Certifications include various titles with levels that are Oracle Certified Associate, Specialist, and Professional. Moreover, the Oracle Cloud Certifications are updated continuously throughout the year for keeping current with major product and service releases and re-released on an annual basis with a new title.
NEW QUESTION 55
Given:
What is the type of the local variable x?
- A. String
- B. char
- C. String[ ]
- D. Character
Answer: A
NEW QUESTION 56
Given:
What will secure this code from a potential Denial of Service condition?
- A. After Line 4, add indexReader.close().
- B. On Line 1, use try with resources when opening each dataReader.
- C. On Line 3, enclose processData(dataReader) with try with resources.
- D. After Line 3, add dataReader.close().
- E. Before Line 1, check the size of dataFiles to make sure it does not exceed a threshold.
Answer: C
NEW QUESTION 57
Given the code fragment:
What is the result?
- A. The compilation fails at line
- B. 0
- C. The compilation fails at line 13.
- D. 1
- E. The compilation fails at line 16.
Answer: B
NEW QUESTION 58
Given:
Which line of code results in a compilation error?
- A. line n4
- B. line n3
- C. line n2
- D. line n1
Answer: A
Explanation:
NEW QUESTION 59
Which code fragment prints 100 random numbers?
- A. Option A
- B. Option C
- C. Option B
- D. Option D
Answer: D
NEW QUESTION 60
Given:
Which two changes need to be made to make this class compile? (Choose two.)
- A. Change Line 1 to extend java.lang.AutoCloseable:public interface API extends AutoCloseable {
- B. Change Line 1 to a class:public class API {
- C. Change Line 1 to an abstract class:public abstract class API {
- D. Change Line 2 to an abstract method:public abstract void checkValue(Object value)throws IllegalArgumentException;
- E. Change Line 2 access modifier to protected:protected void checkValue(Object value)throws IllegalArgumentException;
Answer: B,D
NEW QUESTION 61
Which three initialization statements are correct? (Choose three.)
- A. int[][] e = {{1,1},{2,2}};
- B. String contact# = "(+2) (999) (232)";
- C. short sh = (short)'A';
- D. float x = 1.99;
- E. boolean true = (4 == 4);
- F. int x = 12_34;
- G. byte b = 10;char c = b;
Answer: A,C,F
NEW QUESTION 62
Given:
It is required that if p instanceof Pair then p.isValid() returns true.
Which is the smallest set of visibility changes to insure this requirement is met?
- A. isValid must be public.
- B. left and right must be private.
- C. setLeft and setRight must be protected.
- D. left, right, setLeft, and setRight must be private.
Answer: B
NEW QUESTION 63
Given:
Which two lines of code when inserted in line 1 correctly modifies instance variables? (Choose two.)
- A. setCCount(c) = cCount;
- B. tCount = tCount;
- C. aCount = a;
- D. setGCount(g);
- E. cCount = setCCount(c);
Answer: B,C
NEW QUESTION 64
Which two commands are used to identify class and module dependencies? (Choose two.)
- A. jmod describe
- B. jdeps --list-deps
- C. java --show-module-resolution
- D. jar --show-module-resolution
- E. java Hello.java
Answer: B,C
NEW QUESTION 65
Given the code fragment:
What is the result?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 66
Given:
Which expression when added at line 1 will produce the output of 1.17?
- A. float z = Math.round((float)x/y*100)/(float)100;
- B. float z = Math.round((float)x/y,2);
- C. float z = (float)(Math.round((float)x/y*100)/100);
- D. float z = Math.round((int)(x/y),2);
Answer: A
Explanation:
NEW QUESTION 67
Given:
Which two codes, independently, can be inserted in line to 1 compile?
- A. Abacus aba = (int e, int f) -> { return e * f; };
- B. Abacus aba = (int m, int n) -> { m * n };
- C. Abacus aba = (a, b) -> a * b;
- D. Abacus aba = v, w -> x * y;
- E. Abacus aba = (int i, j) -> ( return i * j; };
Answer: C,E
NEW QUESTION 68
Given:
Which annotation should be used to remove warnings from compilation?
- A. @SuppressWarnings("unchecked") on main and @SafeVarargs on the print method
- B. @SuppressWarnings on the main and print methods
- C. @SuppressWarnings("rawtypes") on main and @SafeVarargs on the print method
- D. @SuppressWarnings("all") on the main and print methods
Answer: A
Explanation:
NEW QUESTION 69
Given:
What is the expected result of javac?
- A. javac fails to compile the class and prints the error message, Error: Could not find or load main class Mycar.class
- B. javac fails to compile the class and prints the error message, C:\workspace4\Mycar.java:1:error: expected import java.lang
- C. javac fails to compile the class and prints the error message, C:\workspace4\Mycar.java:1:error: package java does not exist
- D. javac compiles Mycar.java without errors or warnings.
Answer: D
NEW QUESTION 70
Given:
After which line can we insert assert i < 0 || values[i] <= values[i + 1]; to verify that the values array is partially sorted?
- A. after line 10
- B. after line 8
- C. after line 5
- D. after line 6
Answer: D
Explanation:
NEW QUESTION 71
Given:
Why does D cause a compilation error?
- A. D inherits a() from B and C but the return types are incompatible.
- B. D does not define any method.
- C. D extends more than one interface.
- D. D inherits a() only from C.
Answer: A
NEW QUESTION 72
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