Free Oracle 1Z0-809 Exam Questions
Absolute Free 1Z0-809 Exam Practice for Comprehensive Preparation
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Oracle 1Z0-809 Exam Questions
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Provided By: Oracle
- Exam: Java SE 8 Programmer II
- Certification: Oracle Java
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Total Questions: 469
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Updated On: Sep 25, 2026
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Rated: 4.9 |
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Online Users: 938
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Question 1
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Given:public class Counter {public static void main (String[ ] args) {int a = 10;int b = -1;assert (b >=1) : “Invalid Denominator”;int с = a / b;System.out.println (c);}}What is the result of running the code with the –da option?
Answer: A
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Question 2
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Given code of Test.java file:
1. package com.udayan.ocp;
2.
3. public class Test {
4. private static String msg = "Hello";
5.
6. private static String changeMsg(String m) {
7. msg = m;
8. return null;
9. }
10.
11. public static void main(String[] args) {
12. if(args.length == 0) {
13. assert false : changeMsg("Bye");
14. }
15. System.out.println(msg);
16. }
17. }
What will be the result of executing Test class with below command?
java -ea com.udayan.ocp.Test
Answer: C
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Given code of Test.java file:
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Question 3
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Given code of Test.java file:
1. package com.udayan.ocp;
2.
3. import java.util.ArrayDeque;
4. import java.util.Deque;
5.
6. public class Test {
7. public static void main(String[] args) {
8. Deque
deque = new ArrayDeque<>(); 9. deque.push(new Boolean("abc"));
10. deque.push(new Boolean("tRuE"));
11. deque.push(new Boolean("FALSE"));
12. deque.push(true);
13. System.out.println(deque.pop() + ":" + deque.peek() + ":" + deque.size());
14. }
15. }
What will be the result of compiling and executing Test class?
Answer: A
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Given code of Test.java file:
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Question 4
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Given the code fragment:Stream<Path> files = Files.list(Paths.get(System.getProperty(“user.home”)));files.forEach (fName -> { //line n1try {Path aPath = fName.toAbsolutePath(); //line n2System.out.println(fName + “:”+ Files.readAttributes(aPath,Basic.File.Attributes.class).creationTime());} catch (IOException ex) {ex.printStackTrace();});What is the result?
Answer: C
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Question 5
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Given code of Test.java file:
1. package com.udayan.ocp;
2.
3. import java.util.stream.Stream;
4.
5. public class Test {
6. public static void main(String[] args) {
7. Stream
stream = Stream.of("d", "cc", "bbb", "aaaa"); 8. stream.sorted().forEach(System.out::println);
9. }
10. }
Which of the following needs to be done, so that output is:
d
cc
bbb
aaaa
Answer: B
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Given code of Test.java file: