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Updated Jul-2023 Pass 1z1-819 Exam - Real Practice Test Questions
The exam is aimed at developers who have at least 6 months of experience in Java programming and are familiar with the basics of Java SE 11. It consists of 60 multiple-choice questions and has a time limit of 150 minutes. The exam is available in several languages, including English, Japanese, Chinese, and Korean. Passing the Oracle 1z1-819 exam is a great way to enhance your career opportunities as a Java developer and improve your credibility in the industry.
Achieving certification in the Oracle 1z1-819 (Java SE 11 Developer) Exam can be a valuable asset for Java developers, as it demonstrates a high level of proficiency and expertise in the language. Certification can also lead to career advancement opportunities and higher salaries. However, passing the exam requires a significant amount of time and effort, and candidates should be prepared to invest in their education and training in order to succeed.
NEW QUESTION # 105
Which is a proper JDBC URL?
- A. jdbc:mysql://localhost:3306/database
- B. http://localhost.mysql.com:3306/database
- C. http://localhost mysql.jdbc:3306/database
- D. jdbe.mysql.com://localhost:3306/database
Answer: A
NEW QUESTION # 106 
And the code fragment:
Which situation will occur on code fragment execution?
- A. Livelock
- B. Deadlock
- C. Starvation
- D. Race Condition
Answer: C
NEW QUESTION # 107
Given:
Which code, when inserted at one or more marked positions, would allow classes B and C to compile?
- A. public void z() { } // position 3
- B. @Override // position 3void x () {} // position 3@Override // position 3public void z() { } // position 3
- C. @Override // position 2public void z() { } // position 3
- D. implements A // position 1@Override // position 2
Answer: C
NEW QUESTION # 108
Given:
What is the output?
- A. Hello world!Bonjour le monde!
- B. Bonjour le monde!Hello world!
- C. Hello world!Hello world!
- D. Bonjour le monde!Bonjour le monde!
Answer: B
Explanation:
NEW QUESTION # 109
Given:
Which two independent changes will make the Main class compile? (Choose two.)
- A. Move the entire Student class declaration to a separate Java file, Student.java.
- B. Change line 3 to Student student = new Student("Biology");.
- C. Change line 1 to public class Student {.
- D. Change line 1 to static class Student {.
- E. Change line 2 to public Student(String classname).
Answer: B,E
Explanation:
NEW QUESTION # 110
Given:
What is the result?
- A. An exception is thrown at runtime.
- B. 0
- C. 1
- D. 2
Answer: C
Explanation:
NEW QUESTION # 111
Which two commands are used to identify class and module dependencies? (Choose two.)
- A. jdeps --list-deps
- B. jmod describe
- C. jar --show-module-resolution
- D. java Hello.java
- E. java --show-module-resolution
Answer: A,E
NEW QUESTION # 112
Which code fragment compiles?
- A. Option D
- B. Option B
- C. Option A
- D. Option C
Answer: A
Explanation:
NEW QUESTION # 113
Which code fragment added to line 1 enables the code to compile and print Hello Joe?
- A.
- B.
- C.
- D.
Answer: A
NEW QUESTION # 114
Given:
What is the result?
- A. 0
- B. A java.lang.IllegalArgumentException is thrown.
- C. It fails to compile.
- D. nothing
- E. 1
Answer: C
Explanation:
NEW QUESTION # 115
Which describes an aspect of Java that contributes to high performance?
- A. Java automatically parallelizes code execution.
- B. Java monitors and optimizes code that is frequently executed.
- C. Java prioritizes garbage collection.
- D. Java has a library of built-in functions that can be used to enable pipeline burst execution.
Answer: B
NEW QUESTION # 116
Which is a proper JDBC URL?
- A. jdbc:mysql://localhost:3306/database
- B. http://localhost
mysql.jdbc:3306/database - C. http://localhost.mysql.com:3306/database
- D. jdbe.mysql.com://localhost:3306/database
Answer: A
NEW QUESTION # 117
Given:
Which option should you choose to enable the code to print Something happened?
- A. Add extends Exception on line 1.
Add extends GeneralException on line 2. - B. Add extends Exception on line 1.
Add extends Exception on line 2. - C. Add extends SpecificException on line 1.
Add extends GeneralException on line 2. - D. Add extends GeneralException on line 1.
Add extends Exception on line 2.
Answer: A
Explanation:
NEW QUESTION # 118
Given the code fragment:
What is the output?
- A. A runtime exception is thrown.
- B. [-3, -2, -1]
- C. [-1, -2, -3]
- D. The compilation fails.
Answer: A
NEW QUESTION # 119
Given:
What is the result?
- A. [A, B, C]
followed by an exception thrown on line 11. - B. [A, B, C]
[A, B, C] - C. [A, B, C]
[A, B] - D. On line 9, an exception is thrown at run time.
Answer: B
Explanation:
NEW QUESTION # 120
Given:
What is the output?
- A. Object value 25
- B. The compilation fails due to an error in line 1.
- C. Short value 25
- D. Byte value 25
Answer: B
NEW QUESTION # 121
Examine this excerpt from the declaration of the java.se module:
What does the transitive modifier mean?
- A. Any module that requires the java.se module does not need to require the java.sql module.
- B. Any module that requires the java.sql module does not need to require the java.se module.
- C. Any module that attempts to require the java.se module actually requires the java.sql module instead.
- D. Only a module that requires the java.se module is permitted to require the java.sql module.
Answer: D
NEW QUESTION # 122
Given:
What is the result?
- A. java.lang.ArrayIndexOutOfBoundsException thrown
- B. [0,0] = Red[0,1] = White[1,0] = Black[1,1] = Blue[2,0] = Yellow[2,1] = Green[3,0] = Violet
- C. [0,0] = Red[1,0] = Black[2,0] = Blue
- D. [0,0] = Red[0,1] = White[1,0] = Black[2,0] = Blue[2,1] = Yellow[2,2] = Green[2,3] = Violet
Answer: D
Explanation:
NEW QUESTION # 123
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The Oracle 1z1-819 exam, also known as the Java SE 11 Developer exam, is a certification exam designed for Java developers who want to prove their skills and knowledge in developing Java applications using Java SE 11. This exam is a great way to showcase your proficiency in Java programming and earn recognition from the industry.
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