[Oct 28, 2025] Genuine 1z1-809 Exam Dumps Free Demo
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Oracle 1z0-809 exam is a challenging exam that requires a significant amount of preparation and study. Candidates are recommended to have at least two years of experience in Java programming before attempting 1z1-809 exam. However, passing 1z1-809 exam can provide numerous benefits, including increased job opportunities, higher salaries, and recognition as an expert in Java programming.
Oracle 1z0-809 exam is a multiple-choice exam that consists of 85 questions, and candidates are given 150 minutes to complete it. 1z1-809 exam is available in several languages, including English, Japanese, and Simplified Chinese. The passing score for the Oracle 1z0-809 exam is 63%, and the cost of the exam varies depending on the location.
To prepare for the Oracle 1z1-809 exam, candidates should have a good understanding of Java programming language and its core concepts. They should also have hands-on experience in developing Java applications using Java SE 8. Candidates can take advantage of various study materials, including books, online courses, and practice exams, to prepare for the exam.
NEW QUESTION # 41
Given:
And given the code fragment:
What is the result?
- A. Compilation fails at line n2.
- B. 0:20
- C. Compilation fails at line n1.
- D. 10:20
Answer: A
NEW QUESTION # 42
Given the code fragments:
class TechName {
String techName;
TechName (String techName) {
this.techName=techName;
}
}
and
List<TechName> tech = Arrays.asList (
new TechName("Java-"),
new TechName("Oracle DB-"),
new TechName("J2EE-")
);
Stream<TechName> stre = tech.stream();
//line n1
Which should be inserted at line n1 to print Java-Oracle DB-J2EE-?
- A. stre.forEachOrdered(System.out::print);
- B. stre.forEach(System.out::print);
- C. stre.map(a-> a.techName).forEach(System.out::print);
- D. stre.map(a-> a).forEachOrdered(System.out::print);
Answer: C
NEW QUESTION # 43
Given:
What is the result?
- A. Red 0
Orange 1 - B. Red 0
Orange 0
Green 3 - C. Compilation fails
- D. Green 4
- E. Red 0
Orange 0
Green 6
Answer: C
NEW QUESTION # 44
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. The program prints nothing.
- B. A compilation error occurs at line n1.
- C. ueJa
- D. ur :: va
Answer: D
NEW QUESTION # 45
Given the code fragment:
Stream<Path> files = Files.walk(Paths.get(System.getProperty("user.home"))); files.forEach (fName -> { //line n1 try { Path aPath = fName.toAbsolutePath(); //line n2 System.out.println(fName + ":"
+ Files.readAttributes(aPath,
Basic.File.Attributes.class).creationTime
());
} catch (IOException ex) {
ex.printStackTrace();
});
What is the result?
- A. A compilation error occurs at line n2.
- B. A compilation error occurs at line n1.
- C. All files and directories under the home directory are listed along with their attributes.
- D. The files in the home directory are listed along with their attributes.
Answer: C
NEW QUESTION # 46
Given:
public class product {
int id; int price;
public Product (int id, int price) {
this.id = id;
this.price = price;
}
public String toString() { return id + ":" + price; }
}
and the code fragment:
List<Product> products = Arrays.asList(new Product(1, 10),
new Product (2, 30),
new Product (2, 30));
Product p = products.stream().reduce(new Product (4, 0), (p1, p2) -> {
p1.price+=p2.price;
return new Product (p1.id, p1.price);});
products.add(p);
products.stream().parallel()
.reduce((p1, p2) - > p1.price > p2.price ? p1 : p2)
.ifPresent(System.out: :println);
What is the result?
- A. 4 : 0
- B. 2 : 30
- C. The program prints nothing.
- D. 4 : 70
- E. 4 : 602 : 303 : 201 : 10
Answer: D
NEW QUESTION # 47
Given the code fragment:
List<Integer> nums = Arrays.asList (10, 20, 8):
System.out.println (
//line n1
);
Which code fragment must be inserted at line n1to enable the code to print the maximum number in
the numslist?
- A. nums.stream().max(Integer : : max).get()
- B. nums.stream().max()
- C. nums.stream().map(a -> a).max()
- D. nums.stream().max(Comparator.comparing(a -> a)).get()
Answer: D
NEW QUESTION # 48
Given the code fragments :
and
What is the result?
- A. TV Price :110 Refrigerator Price :2100
- B. A compilation error occurs.
- C. The program prints nothing.
- D. TV Price :1000 Refrigerator Price :2000
Answer: A
NEW QUESTION # 49
Given the code fragment:
Map<Integer, String> books = new TreeMap<>();
books.put (1007, "A");
books.put (1002, "C");
books.put (1001, "B");
books.put (1003, "B");
System.out.println (books);
What is the result?
- A. {1001 = B, 1002 = C, 1003 = B, 1007 = A}
- B. {1007 = A, 1002 = C, 1001 = B, 1003 = B}
- C. {1002 = C, 1003 = B, 1007 = A}
- D. {1007 = A, 1001 = B, 1003 = B, 1002 = C}
Answer: A
Explanation:
Explanation/Reference:
Reference: TreeMap inherits SortedMap and automatically sorts the element's key
NEW QUESTION # 50
Given the code fragment:
Path path1 = Paths.get("/app/./sys/");
Path res1 = path1.resolve("log");
Path path2 = Paths.get("/server/exe/");
Path res1 = path1.resolve("/readme/");
System.out.println(res1);
System.out.println(res2);
What is the result?
- A. /app/./sys/log /readme
- B. /app/log/sys /server/exe/readme
- C. /app/sys/log /readme/server/exe
- D. /app/./sys/log /server/exe/readme
Answer: D
NEW QUESTION # 51
Given the code fragment:
public void recDelete (String dirName) throws IOException {
File [ ] listOfFiles = new File (dirName) .listFiles();
if (listOfFiles ! = null && listOfFiles.length >0) {
for (File aFile : listOfFiles) {
if (!aFile.isDirectory ()) {
if (aFile.getName ().endsWith (".class"))
aFile.delete ();
}
}
}
}
Assume that Projects contains subdirectories that contain .class files and is passed as an argument to the recDelete () method when it is invoked.
What is the result?
- A. The method executes and does not make any changes to the Projects directory.
- B. The method deletes the .class files of the Projects directory only.
- C. The method deletes all the .class files in the Projects directory and its subdirectories.
- D. The method throws an IOException.
Answer: B
NEW QUESTION # 52
Given the fragments:
Which line causes a compilation error?
- A. Line n2
- B. Line n4
- C. Line n3
- D. Line n1
Answer: D
NEW QUESTION # 53
Given:
- A. X Y X
- B. Y YY
- C. X XX
- D. Y Y X
Answer: B
NEW QUESTION # 54
Given the content of the files:
Given the code fragment from the Test. java file:
What is the result?
- A. Have a nice day!
- B. A MissingResourceException is thrown at run time.
- C. Hi!
- D. Compilation fails at line 14.
Answer: D
NEW QUESTION # 55
In 2015, daylight saving time in New York, USA, begins on March 8th at 2:00 AM. As a result, 2:00 AM
becomes 3:00 AM.
Given the code fragment:
Which is the result?
- A. 4:00 - difference: 3
- B. 4:00 - difference: 2
- C. 2:00 - difference: 1
- D. 3:00 - difference: 2
Answer: B
NEW QUESTION # 56
......
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