Free Oracle 1Z1-805 Exam Dumps Questions & Answers

Given the code fragment:
11.
public static getFileSize () throws IOException {
12.
path file = paths.get ("ex.txt");
13.
//insert code here
14.
System.out.println ("size: " + attr.size());
15.
}
public static getFileSize () throws IOException {
Path file = Paths.get ("ex.txt");
//insert code here Line **
System.out.println ("size: " + attr.size());
}
Which two fragments, when inserted independently at line **, enable printing of the file size?

• A.  AclFileAttributeview attr = Files.getFileAttributeView(File, AclFileAttributeview.class);
• B.  BasicFileAttributes attr = Files.readAttributes (file, BasicFileAttributes.class);
• C.  FileStore attr = Files.getFileStore (file);
• D.  DosFileAttributes attr = Files.readAttributes (file, dosAttributes.class);
• E.  PosixFileAttributes attr = Files.readAttributes (file, posixFileAttributes.class);

What statement is true about thread starvation?

• A.  Thread "A" is said to be starved when it is frequently unable to gain access to a resource that it shares with another thread.
• B.  Starvation can occur when threads become so busy responding to other threads that they move forward with their other work.
• C.  Thread "A" is said to be starved when it is blocked waiting for Thread "13," which in turn waiting for Thread "A."
• D.  When some of the processors in a multi-processor environment go offline and the live thread(s) blocked waiting for CPU cycles, that blocking is referred to as "thread starvation."

Given the code fragment:
List<Person> pList = new CopyOnWriteArrayList<Person>();
Which statement is true?

• A.  Read access to the List should be synchronized.
• B.  Write access to the List should be synchronized.
• C.  Multiple threads can safely delete Person objects from the List.
• D.  Person objects retrieved from the List are thread-safe.
• E.  A Person object retrieved from the List is copied when written to.

Which method or methods should you implement to create your own implementation of the java.nio.file.PathMatcher interface?

• A.  matches(Path)
• B.  matches(Path) , fails(Path) , setPreferred (String)
• C.  matches(Path) , fails(Path), enable(boolean)
• D.  matches(Path), fails(Path)

Given the code fragment:
try {
String query = "SELECT * FROM Employee WHERE ID=110";
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery(query); // Line 13
System.out.println("Employee ID: " + rs.getInt("ID")); // Line 14
} catch (Exception se) {
System.out.println("Error");
}
Assume that the SQL query matches one record. What is the result of compiling and executing this code?

• A.  Compilation fails due to an error at line 13.
• B.  The code prints error.
• C.  The code prints the employee ID.
• D.  Compilation fails due to an error at line 14.