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Latest 2024 Oracle 1Z0-809 Certification Questions & Mock Tests, Java SE 8 Programmer II | SPOTO

Explore our latest 2024 Oracle 1Z0-809 Certification Questions & Mock Tests, tailored for Java SE 8 Programmer II aspirants. Our platform offers a diverse range of resources including practice tests, free tests, exam practice materials, online exam questions, sample questions, exam dumps, mock exams, exam questions and answers, and comprehensive exam materials. These latest practice tests are meticulously crafted to assist you in successfully passing the certification exam. The Java SE 8 Programmer II 1Z0-809 Certification focuses on advancing learning through a structured approach, ensuring proficiency in utilizing Oracle 1Z0-809 study material effectively. This certification course serves as the next step for individuals delving deeper into the Java language, equipping them with essential skills required for professional Java programming endeavors. Whether you're aiming to bolster your Java expertise or seeking career advancement, our comprehensive mock tests and exam resources will guide you towards success in the Java SE 8 Programmer II certification journey.

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Question #1
Given the code fragment: class CallerThread implements Callable { String str; public CallerThread(String s) {this.str=s;} public String call() throws Exception { return str.concat(“Call”); } } and public static void main (String[] args) throws InterruptedException, ExecutionException { ExecutorService es = Executors.newFixedThreadPool(4); //line n1 Future f1 = es.submit (newCallerThread(“Call”)); String str = f1.get().toString(); System.out.println(str); } Which statement is true?
A. The program prints Call Call and terminates
B. The program prints Call Call and does not terminate
C. A compilation error occurs at line n1
D. An ExecutionException is thrown at run time
View answer
Correct Answer: D
Question #2
Given: and the code fragment: Which definition of the ColorSorter class sorts the blocks list?
A. Option A
B. Option B
C. Option C
D. Option D
View answer
Correct Answer: A
Question #3
Given the code fragment: List colors = Arrays.asList(“red”, “green”, “yellow”); Predicate test = n - > { System.out.println(“Searching…”); return n.contains(“red”); }; colors.stream() .f ilter(c -> c.length() > 3) .allMatch(test); What is the result?
A. Searching
B. Searching
C. Searching
D. A compilation error occurs
View answer
Correct Answer: B
Question #4
Given: Book.java: public class Book { private String read(String bname) { return “Read” + bname } } EBook.java: public class EBook extends Book { public class String read (String url) { return “View” + url } } Test.java: public class Test { public static void main (String[] args) { Book b1 = new Book(); b1.read(“Java Programing”); Book b2 = new EBook(); b2.read(“http://ebook.com/ebook”); } } What is the result?
A. Read Java Programming View http:/ ebook
B. Read Java Programming Read http:/ ebook
C. The EBook
D. The Test
View answer
Correct Answer: A
Question #5
Given that course.txt is accessible and contains: Course : : Java and given the code fragment: public static void main (String[ ] args) { int i; char c; try (FileInputStream fis = new FileInputStream (“course.txt”); InputStreamReader isr = new InputStreamReader(fis);) { while (isr.ready()) { //line n1 isr.skip(2); i = isr.read (); c = (char) i; System.out.print(c); } } catch (Exception e) { e.printStackTrace(); } } What is the result?
A. ur :: va
B. ueJa
C. The program prints nothing
D. A compilation error occurs at line n1
View answer
Correct Answer: D
Question #6
Given the code fragment: UnaryOperator uo1 = s -> s*2; line n1 List loanValues = Arrays.asList(1000.0, 2000.0); loanValues.stream() .filter(lv -> lv >= 1500) .map(lv -> uo1.apply(lv)) .forEach(s -> System.out.print(s + “ “)); What is the result?
A. 4000
B. 4000
C. A compilation error occurs at line n1
D. A compilation error occurs at line n2
View answer
Correct Answer: D
Question #7
Given: and the code fragment: What is the result?
A. [Java EE: Helen:Houston][Java ME: Jessy:Chicago, Java ME: Mark:Chicago]
B. Java EEJava ME
C. [Java ME: Jessy:Chicago, Java ME: Mark:Chicago] [Java EE: Helen:Houston]
D. A compilation error occurs
View answer
Correct Answer: B
Question #8
Given: and this code fragment: What is the result?
A. Open-Close– Exception – 1 Open–Close–
B. Open–Close–Open–Close–
C. A compilation error occurs at line n1
D. Open–Close–Open–
View answer
Correct Answer: A
Question #9
Given the code fragments: class Caller implements Callable { String str; public Caller (String s) {this.str=s;} public String call()throws Exception { return str.concat (“Caller”);} } class Runner implements Runnable { String str; public Runner (String s) {this.str=s;} public void run () { System.out.println (str.concat (“Runner”));} } and public static void main (String[] args) InterruptedException, ExecutionException { ExecutorService es = Executors.newFixedThreadPool(2); Future f1 = es.submit (ne
A. The program prints: Run RunnerCall Caller : nullAnd the program does not terminate
B. The program terminates after printing: Run RunnerCall Caller : Run
C. A compilation error occurs at line n1
D. An Execution is thrown at run time
View answer
Correct Answer: C
Question #10
What is the result?
A. A compilation error occurs at line 7
B. 100
C. A compilation error occurs at line 8
D. A compilation error occurs at line 15
View answer
Correct Answer: A
Question #11
Given that data.txt and alldata.txt are accessible, and the code fragment: What is required at line n1 to enable the code to overwrite alldata.txt with data.txt?
A. br
B. bw
C. br
D. bw
View answer
Correct Answer: A

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