The Best Practice Test Preparation for the 1z1-809 Certification Exam
1z1-809 Exam Dumps, Practice Test Questions BUNDLE PACK
One of the primary benefits of passing the Oracle 1z1-809 exam is that it demonstrates a high level of proficiency in Java programming. Java SE 8 Programmer II certification is recognized by many employers as an industry-standard credential, and it can help you stand out in a crowded job market. Additionally, the knowledge and skills you gain while preparing for the exam can help you become a better Java developer overall.
Oracle 1z0-809 exam is recognized globally and is highly valued in the IT industry. Passing 1z1-809 exam demonstrates the candidate's expertise in advanced Java programming, which can be beneficial in enhancing their career prospects. Java SE 8 Programmer II certification is also a testament to the candidate's commitment to their profession and the latest advancements in Java SE 8.
NEW QUESTION # 120
Given:
What is the result?
- A. -catch--finally--dostuff-
- B. -finally-dostuff--catch-
- C. -finally--catch-
- D. -catch-
Answer: C
Explanation:
NEW QUESTION # 121
Given the code fragment:
Which two modifications should you make so that the code compiles successfully?
- A. Replace line 13 with:
- B. Replace line 5 with public void printFileContent ( ) throws IOException (
- C. Replace line 7 with throw IOException ("Exception raised");
- D. At line 14, insert throw new IOException ( );
- E. Replace line 11 with public static void main (String [ ] args) throws Exception (
Answer: C,E
NEW QUESTION # 122
Given the code fragment:
What is the result?
- A. 0
- B. 1
- C. 2
- D. Compilation fails.
Answer: B
NEW QUESTION # 123
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 /server/exe/readme
- B. /app/log/sys /server/exe/readme
- C. /app/./sys/log /readme
- D. /app/sys/log /readme/server/exe
Answer: A
NEW QUESTION # 124
The data.doc, data.txt and data.xml files are accessible and contain text.
Given the code fragment:
Stream<Path> paths = Stream.of (Paths. get("data.doc"),
Paths. get("data.txt"),
Paths. get("data.xml"));
paths.filter(s-> s.toString().endWith("txt")).forEach(
s -> {
try {
Files.readAllLines(s)
.stream()
.forEach(System.out::println); //line n1
} catch (IOException e) {
System.out.println("Exception");
}
}
);
What is the result?
- A. The program prints the content of the three files.
- B. The program prints:
Exception
<<The content of the data.txt file>>
Exception - C. The program prints the content of data.txt file.
- D. A compilation error occurs at line n1.
Answer: C
NEW QUESTION # 125
Given the code fragment:
What is the result?
- A. A compilation error occurs at line n1.
- B. A compilation error occurs at line n2.
- C. Checking...Checking...
- D. Checking...
Answer: A
NEW QUESTION # 126
Given the following segment of code:
Which two statements, If either were true, would make the code compile?
- A. MotorCycle is an interface that implements the Vehicle class.
- B. Vehicle is an interface that is implemented by the Motorcycle class.
- C. motorCycle is a superclass of vehicle.
- D. Vehicle and MotorCycle both implement the Transportation interface.
- E. Vehicle and MotorCycle both extend the Transportation superclass.
- F. Vehicle is a superclass of MotorCycle.
Answer: B,F
NEW QUESTION # 127
Which two methods from the java.util.stream.Stream interface perform a reduction operation? (Choose two.)
- A. collect ()
- B. count ()
- C. distinct ()
- D. peek ()
- E. filter ()
Answer: A,B
Explanation:
References:
NEW QUESTION # 128
Given the code fragments :
and
What is the result?
- A. A compilation error occurs.
- B. The program prints nothing.
- C. TV Price :1000 Refrigerator Price :2000
- D. TV Price :110 Refrigerator Price :2100
Answer: D
NEW QUESTION # 129
Given:
and the code fragment:
What is the result?
- A. 1500.0
- B. 0.0
- C. A compilation error occurs.
- D. 2000.0
Answer: D
NEW QUESTION # 130
Given the code fragment
Which code fragments, inserted independently, enable the code compile?
- A. t.fvar = 200; Test2.cvar = 400;
- B. this.fvar = 200; this.cvar = 400;
- C. this.fvar = 200;
Test2.cvar = 400; - D. t.fvar = 200;
- E. cvar = 400;
- F. fvar = 200; cvar = 400;
Answer: E
NEW QUESTION # 131
Given the code fragment:
Which code fragment prints red: blue: sma11: medium: ?
- A. Option B
- B. Option A
- C. Option D
- D. Option C
Answer: A
NEW QUESTION # 132
Given the code fragment:
public class FileThread implements Runnable {
String fName;
public FileThread(String fName) { this.fName = fName; }
public void run () System.out.println(fName);}
public static void main (String[] args) throws IOException,
InterruptedException {
ExecutorService executor = Executors.newCachedThreadPool();
Stream<Path> listOfFiles = Files.walk(Paths.get("Java Projects"));
listOfFiles.forEach(line -> {
executor.execute(new FileThread(line.getFileName().toString())); //
line n1
});
executor.shutdown();
executor.awaitTermination(5, TimeUnit.DAYS);//
line n2
}
}
The Java Projects directory exists and contains a list of files.
What is the result?
- A. The program throws a runtime exception at line n2.
- B. The program prints files names concurrently.
- C. The program prints files names sequentially.
- D. A compilation error occurs at line n1.
Answer: B
NEW QUESTION # 133
Given the code fragment:
public class ForTest {
public static void main(String[] args) {
int[] arrar = {1,2,3};
for ( foo ) {
}
}
}
Which three are valid replacements for foo so that the program will compiled and run?
- A. ;;
- B. ; i < 1;
- C. int i = 0; i < 1; i++
- D. int i: array
- E. ; i < 1; i++
Answer: A,C,D
NEW QUESTION # 134
Given:
and the code fragment:
What is the result?
- A. Java EEJava ME
- B. [Java ME: Jessy:Chicago, Java ME: Mark:Chicago][Java EE: Helen:Houston]
- C. [Java EE: Helen:Houston][Java ME: Jessy:Chicago, Java ME: Mark:Chicago]
- D. A compilation error occurs.
Answer: D
Explanation:
Explanation
Exolanation:
NEW QUESTION # 135
Given:
Message.properties:
msg = Welcome!
Message_fr_FR.properties:
msg = Bienvenue!
Given the code fragment:
// line n1
Locale.setDefault(locale);
ResourceBundle bundle = ResourceBundle.getBundle("Message");
System.out.print(bundle.getString("msg"));
Which two code fragments, when inserted at line n1 independently, enable to print Bienvenue!?
- A. Locale locale = new Locale ("FRANCE", "FRENCH");
- B. Locale locale = Locale.FRANCE;
- C. Locale locale = new Locale ("fr", "FR");
- D. Locale locale = Locale.forLanguageTag("fr");
- E. Locale locale = new Locale("fr-FR");
Answer: B,C
NEW QUESTION # 136
Given the code fragment:
Which statement can be inserted into line n1 to print 1,2; 1,10; 2,20;?
- A. BiConsumer<Integer, Integer, String> c = (i, j) -> {System.out.print (i + "," + j+ "; ")};
- B. BiConsumer<Integer, Integer, Integer> c = (i, j) -> {System.out.print (i + "," + j+ "; ");};
- C. BiConsumer<Integer,Integer> c = (i, j) -> {System.out.print (i + "," + j+ "; ");};
- D. BiFunction<Integer, Integer, String> c = (i, j) -> {System.out.print (i + "," + j+ "; ")};
Answer: D
Explanation:
References:
NEW QUESTION # 137
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 = new ArrayList <> (Arrays.asList(new Product(1, 10),
new Product (2, 30),
new Product (3, 20));
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. The program prints nothing
- B. 4:0
- C. 4:60
- D. 4:60
2:30
3:20
1:10 - E. 2:30
Answer: D
NEW QUESTION # 138
Given the definition of the Emp class:
public class Emp
private String eName;
private Integer eAge;
Emp(String eN, Integer eA) {
this.eName = eN;
this.eAge = eA;
}
public Integer getEAge () {return eAge;}
public String getEName () {return eName;}
}
and code fragment:
List<Emp>li = Arrays.asList(new Emp("Sam", 20), New Emp("John", 60), New Emp("Jim", 51));
Predicate<Emp> agVal = s -> s.getEAge() > 50;//line n1
li = li.stream().filter(agVal).collect(Collectors.toList());
Stream<String> names = li.stream()map.(Emp::getEName);//line n2
names.forEach(n -> System.out.print(n + " "));
What is the result?
- A. John Jim
- B. A compilation error occurs at line n2.
- C. A compilation error occurs at line n1.
- D. Sam John Jim
Answer: A
NEW QUESTION # 139
......
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