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Best Oracle 1Z0-819 Practice Exams and Exam Preparation Materials, Java SE 11 Developer | SPOTO

Welcome to SPOTO's Best Oracle 1Z0-819 Practice Exams and Exam Preparation Materials for Java SE 11 Developer certification. Our platform offers a comprehensive array of resources to bolster your exam readiness, including practice tests, free tests, sample questions, mock exams, and exam dumps. With our online exam questions and answers, you can fortify your understanding of Java programming language intricacies, coding practices, and the latest features integrated into Java SE 11. Our exam materials are meticulously crafted to ensure thorough preparation and confidence-building for exam day. Whether you're seeking to test your knowledge or delve deeper into specific topics, our latest practice tests are designed to propel you towards certification success. Trust SPOTO to provide the tools and support necessary to excel in the Oracle 1Z0-819 exam and showcase your proficiency in Java SE 11 development.
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Question #1
What is the result?
A. NullPointerException is thrown at line 4
B. NullPointerException is thrown at line 10
C. A compilation error occurs
D. Hello
View answer
Correct Answer: A
Question #2
What must be added in line 1 to compile this class?
A. catch(IOException e) { }
B. catch(FileNotFoundException | IndexOutOfBoundsException e) { }
C. catch(FileNotFoundException | IOException e) { }
D. catch(IndexOutOfBoundsException e) { }catch(FileNotFoundException e) { }
E. catch(FileNotFoundException e) { }catch(IndexOutOfBoundsException e) { }
View answer
Correct Answer: B
Question #3
What is the type of the local variable x?
A. Character
B. char
C. String[ ]
D. String
View answer
Correct Answer: C
Question #4
Which interface in the java.util.function package will return a void return type?
A. Supplier
B. Predicate
C. Function
D. Consumer
View answer
Correct Answer: D
Question #5
Consider this method declaration: A) “SET SESSION AUTHORIZATION “ + user B) “SET SESSION AUTHORIZATION “ + stmt.enquoteIdentifier(user) Is A or B the correct replacement for and why?
A. A, because it sends exactly the value of user provided by the calling code
B. B, because enquoting values provided by the calling code prevents SQL injection
C. A and B are functionally equivalent
D. A, because it is unnecessary to enclose identifiers in quotes
E. B, because all values provided by the calling code should be enquoted
View answer
Correct Answer: D
Question #6
Which two allow a.Main to allocate a new Person? (Choose two.)
A. In Line 1, change the access modifier to privateprivate Person() {
B. In Line 1, change the access modifier to publicpublic Person() {
C. In Line 2, add extends Person to the Main classpublic class Main extends Person {and change Line 3 to create a new Main objectPerson person = new Main();
D. In Line 2, change the access modifier to protectedprotected class Main {
E. In Line 1, remove the access modifierPerson() {
View answer
Correct Answer: BC
Question #7
Assume the file on path does not exist. What is the result?
A. The compilation fails
B. /u01/work/filestore
C. Exception
D. /u01/work/filestore
View answer
Correct Answer: AB
Question #8
Which two interfaces can be used in lambda expressions? (Choose two.)
A. MyInterface1
B. MyInterface3
C. MyInterface5
D. MyInterface2
E. MyInterface4
View answer
Correct Answer: ABH
Question #9
and What is the result?
A. A NullPointerException is thrown at run time
B. The compilation fails
C. 1Null null
D. 111
E. A ClassCastException is thrown at run time
View answer
Correct Answer: B
Question #10
Given the code fragment: What is the output?
A. The compilation fail
B. [-1, -2, -3]
C. [-3, -2, -1]
D. A runtime exception is thrown
View answer
Correct Answer: BD
Question #11
Which two lines of code when inserted in line 1 correctly modifies instance variables? (Choose two.)
A. setCCount(c) = cCount;
B. tCount = tCount;
C. setGCount(g);
D. cCount = setCCount(c);
E. aCount = a;
View answer
Correct Answer: AB
Question #12
Which loop incurs a compile time error?
A. the loop starting line 11
B. the loop starting line 7
C. the loop starting line 14
D. the loop starting line 3
View answer
Correct Answer: F
Question #13
Which command line runs the main class com.acme.Main from the module com.example?
A. java --module-path mods com
B. java –classpath com
C. java --module-path mods -m com
D. java -classpath com
View answer
Correct Answer: BFG

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