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By passing the Oracle 1z0-809 exam, candidates can demonstrate their proficiency in Java programming and increase their chances of getting hired for Java developer roles. Java SE 8 Programmer II certification is also recognized by employers as proof of an individual's expertise in Java programming and can lead to higher salaries and better job opportunities.
Oracle 1z0-809 exam is a comprehensive test that evaluates a candidate's ability to develop complex Java applications using advanced programming techniques. It consists of 85 multiple-choice questions that need to be completed within 150 minutes. 1z1-809 exam is available in multiple languages, including English, Japanese, and Simplified Chinese. To pass the exam, a candidate needs to score at least 65% of the total marks.
NEW QUESTION # 115
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?
Read Java Programming
- A. Read http:/ ebook.com/ebook
- B. View http:/ ebook.com/ebook
Read Java Programming - C. The EBook.javafile fails to compile.
- D. The Test.javafile fails to compile.
Answer: D
NEW QUESTION # 116
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. 3:00 - difference: 2
- C. 2:00 - difference: 1
- D. 4:00 - difference: 2
Answer: D
NEW QUESTION # 117
Given the information: The employee table has 10 records.
Given the code fragment:
What is the result?
- A. deletes the second row and prints the emp_id of the first row
- B. deletes the first row and throws an exception at Line n2
- C. deletes the first row and prints the emp_id of the second row
- D. throws a runtime exception at Line n1
Answer: B
NEW QUESTION # 118
Given the code fragment:
String str = "Java is a programming language"; ToIntFunction<String> indexVal = str: : indexOf; //line n1 int x = indexVal.applyAsInt("Java");//line n2 System.out.println(x);
What is the result?
- A. A compilation error occurs at line n1.
- B. A compilation error occurs at line n2.
- C. 0
- D. 1
Answer: C
NEW QUESTION # 119
Given:
What is the result?
- A. 10 : 22 : 6
- B. 10 : 22 : 22
- C. 10 : 30 : 6
- D. 10 : 22 : 20
Answer: B
NEW QUESTION # 120
Which two statements are true about localizing an application?
- A. Textual elements (messages and GUI labels) are hard-coded in the code.
- B. Language codes use lowercase letters and region codes use uppercase letters.
- C. Resource bundle files include data and currency information.
- D. Language and region-specific programs are created using localized data.
- E. Support for new regional languages does not require recompilation of the code.
Answer: B,E
Explanation:
http://docs.oracle.com/javase/7/docs/technotes/guides/intl/
NEW QUESTION # 121
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. 2:00 - difference: 1
- B. 4:00 - difference: 3
- C. 3:00 - difference: 2
- D. 4:00 - difference: 2
Answer: A
NEW QUESTION # 122
Given the code format:
Which code fragment must be inserted at line 6 to enable the code to compile?
- A. Return DBConfiguration;
- B. DBConfiguration f; return f;
- C. Return new DBConfiguration;
- D. Retutn 0;
Answer: A
NEW QUESTION # 123
Given the code fragment:
Which code fragment prints blue, cyan, ?
- A. Option A
- B. Option D
- C. Option B
- D. Option C
Answer: A
NEW QUESTION # 124
Given:
Your design requires that:
fuelLevel of Engine must be greater than zero when the start()method is invoked.
The code must terminate if fuelLevelof Engineis less than or equal to zero.
Which code fragment should be added at line n1to express this invariant condition?
- A. assert (fuelLevel) : "Terminating...";
- B. assert fuelLevel < 0: System.exit(0);
- C. assert fuelLevel > 0: "Impossible fuel" ;
- D. assert (fuelLevel > 0) : System.out.println ("Impossible fuel");
Answer: B
NEW QUESTION # 125
Given:
and the code fragment:
What is the result?
- A. 0.0
- B. 2000.0
- C. 1500.0
- D. A compilation error occurs.
Answer: C
NEW QUESTION # 126
Given the code fragment:
UnaryOperator<Integer> uo1 = s -> s*2; line n1
List<Double> 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. A compilation error occurs at line n1.
- B. A compilation error occurs at line n2.
- C. 4000.0
- D. 0
Answer: B
NEW QUESTION # 127
Given the following segment of code:
Which two statements, If either were true, would make the code compile?
- A. Vehicle is an interface that is implemented by the Motorcycle class.
- B. Vehicle and MotorCycle both implement the Transportation interface.
- C. Vehicle is a superclass of MotorCycle.
- D. motorCycle is a superclass of vehicle.
- E. Vehicle and MotorCycle both extend the Transportation superclass.
- F. MotorCycle is an interface that implements the Vehicle class.
Answer: A,C
NEW QUESTION # 128
Given the code fragment:
Which two modifications should you make so that the code compiles successfully?
- A. Replace line 7 with throw IOException ("Exception raised");
- B. Replace line 5 with public void printFileContent ( ) throws IOException (
- C. Replace line 11 with public static void main (String [ ] args) throws Exception (
- D. Replace line 13 with:
- E. At line 14, insert throw new IOException ( );
Answer: A,C
NEW QUESTION # 129
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. A compilation error occurs at line n1.
- B. The program prints the content of data.txt file.
- C. The program prints the content of the three files.
- D. The program prints:Exception<<The content of the data.txt file>>Exception
Answer: B
NEW QUESTION # 130
Given the code fragment:
What is the result?
- A. Val: Val: Val
- B. A compilation error occurs.
- C. Val:20 Val:40 Val:60
- D. Val:10 Val:20 Val:30
Answer: D
NEW QUESTION # 131
Given the code fragment:
public static void main (String[] args) throws IOException {
BufferedReader brCopy = null;
try (BufferedReader br = new BufferedReader (new FileReader
(“employee.txt”))) { //
line n1
br.lines().forEach(c -> System.out.println(c));
brCopy = br; //line n2
}
brCopy.ready(); //line n3;
}
Assume that the ready method of the BufferedReader, when called on a closed BufferedReader, throws an exception, and employee.txt is accessible and contains valid text.
What is the result?
- A. A compilation error occurs at line n1.
- B. A compilation error occurs at line n3.
- C. A compilation error occurs at line n2.
- D. The code prints the content of the employee.txtfile and throws an exception at line n3.
Answer: D
NEW QUESTION # 132
......
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