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The Oracle 1z0-809 exam consists of 90 multiple-choice and multiple-answer questions, and candidates are given 150 minutes to complete the exam. 1z0-809 exam is designed to test a candidate's ability to write, debug, and maintain Java applications that are efficient, scalable, and secure. 1z0-809 Exam is also designed to test a candidate's ability to apply Java best practices and design patterns in real-world scenarios.

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1z0-809 Reliable Test Notes | Latest 1z0-809 Test Objectives

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Oracle Java SE 8 Programmer II Sample Questions (Q10-Q15):

NEW QUESTION # 10
Given the code fragment:
1Z0-809-e2af30564c046a9ada8c38244664d972.jpg
What is the result?

  • A. An IndexOutOfBoundsException is thrown at runtime.
  • B. [green, red, yellow, cyan]
  • C. [green, blue, yellow, cyan]
  • D. (green, red, cyan, yellow)

Answer: B

 

NEW QUESTION # 11
Given the code fragment:
1z0-809-02a15d8c534cb1b85add81e8d6ec09b2.jpg
Which code fragment, when inserted at line n1, ensures falseis printed?

  • A. boolean b = cs.stream() .findFirst() .get() .equals("Java");
  • B. boolean b = cs.stream() .findAny() .get() .equals("Java");
  • C. boolean b = cs.stream() .anyMatch (w -> w.equals ("Java"));
  • D. boolean b = cs.stream() .allMatch(w -> w.equals("Java"));

Answer: C

 

NEW QUESTION # 12
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:
    Exception
    <<The content of the data.txt file>>
    Exception
  • B. A compilation error occurs at line n1.
  • C. The program prints the content of the three files.
  • D. The program prints the content of data.txt file.

Answer: D

 

NEW QUESTION # 13
Which two are Java Exception classes?

  • A. SercurityException
  • B. TooManyArgumentsException
  • C. DuplicatePathException
  • D. IllegalArgumentException

Answer: A,D

 

NEW QUESTION # 14
Given the structure of the STUDENT table:
Student (id INTEGER, name VARCHAR)
Given:
public class Test {
static Connection newConnection =null;
public static Connection get DBConnection () throws SQLException {
try (Connection con = DriveManager.getConnection(URL, username, password)) { newConnection = con;
}
return newConnection;
}
public static void main (String [] args) throws SQLException {
get DBConnection ();
Statement st = newConnection.createStatement();
st.executeUpdate("INSERT INTO student VALUES (102, 'Kelvin')");
}
}
Assume that:
The required database driver is configured in the classpath.
The appropriate database is accessible with the URL, userName, and passWord exists.
The SQL query is valid.
What is the result?

  • A. A SQLException is thrown as runtime.
  • B. A NullPointerException is thrown as runtime.
  • C. The program executes successfully and the STUDENT table is updated with one record.
  • D. The program executes successfully and the STUDENT table is NOT updated with any record.

Answer: A

 

NEW QUESTION # 15
......

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