Oracle 1z0-809 Exam : Java SE 8 Programmer II

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.close()) { //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. ueJa
• B. A compilation error occurs at line n1.
• C. The program prints nothing.
• D. ur :: va

Assume customers.txt is accessible and contains multiple lines.
Which code fragment prints the contents of the customers.txt file?

• A. Stream<Path> stream = Files.list (Paths.get ("customers.txt"));stream.forEach( c) -> System.out.println (c));
• B. Stream<String> stream = Files.find (Paths.get ("customers.txt"));stream.forEach((String c) -> System.
  out.println(c));
• C. Stream<Path> stream = Files.find (Paths.get ("customers.txt"));stream.forEach( c) -> System.out.println (c));
• D. Stream<String> lines = Files.lines (Paths.get ("customers.txt"));lines.forEach( c) -> System.out.println (c));

Given the content of /resourses/Message.properties:
welcome1="Good day!"
and given the code fragment:
Properties prop = new Properties ();
FileInputStream fis = new FileInputStream ("/resources/Message.properties"); prop.load(fis); System.out.println(prop.getProperty("welcome1")); System.out.println(prop.getProperty("welcome2", "Test"));//line n1 System.out.println(prop.getProperty("welcome3")); What is the result?

• A. Good day!followed by an Exception stack trace
• B. Good day!Testfollowed by an Exception stack trace
• C. A compilation error occurs at line n1.
• D. Good day!Testnull

Given:
interface Doable {
public void doSomething (String s);
}
Which two class definitions compile? (Choose two.)

• A. public class Job implements Doable {public void doSomething(Integer i) { }}
• B. public class Action implements Doable {public void doSomething(Integer i) { }public String doThis (Integer j) { }}
• C. public abstract class Work implements Doable {public abstract void doSomething(String s) { }public void doYourThing(Boolean b) { }}
• D. public class Do implements Doable {public void doSomething(Integer i) { }public void doSomething (String s) { }public void doThat (String s) { }}
• E. public abstract class Task implements Doable {public void doSomethingElse(String s) { }}

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