NEW QUESTION 1
Given:
class Sum extends RecursiveAction { //line n1 static final int THRESHOLD_SIZE = 3;
int stIndex, lstIndex; int [ ] data;
public Sum (int [ ]data, int start, int end) { this.data = data;
this stIndex = start; this. lstIndex = end;
}
protected void compute ( ) { int sum = 0;
if (lstIndex – stIndex <= THRESHOLD_SIZE) { for (int i = stIndex; i < lstIndex; i++) {
sum += data [i];
}
System.out.println(sum);
} else {
new Sum (data, stIndex + THRESHOLD_SIZE, lstIndex).fork( ); new Sum (data, stIndex,
Math.min (lstIndex, stIndex + THRESHOLD_SIZE)
).compute ();
}
}
}
and the code fragment:
ForkJoinPool fjPool = new ForkJoinPool ( ); int data [ ] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
fjPool.invoke (new Sum (data, 0, data.length));
and given that the sum of all integers from 1 to 10 is 55. Which statement is true?

• A. The program prints several values that total 55.
• B. The program prints 55.
• C. A compilation error occurs at line n1.
• D. The program prints several values whose sum exceeds 55.

Answer: A

NEW QUESTION 2
Given that version.txt is accessible and contains: 1234567890
and given the code fragment:

What is the result?

• A. 121
• B. 122
• C. 135
• D. The program prints nothing.

Answer: B

NEW QUESTION 3
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. The code reads the password without echoing characters on the console.
• D. A compilation error occurs because the IOException isn’t declared to be thrown or caught?

Answer: D

NEW QUESTION 4
Given:

and the code fragment:

What is the result?

• A. A compilation error occurs at line n2.
• B. A compilation error occurs because the try block doesn’t have a catch or finally block.
• C. A compilation error occurs at line n1.
• D. The program compiles successfully.

Answer: B

NEW QUESTION 5
Given:
public class Counter {
public static void main (String[ ] args) { int a = 10;
int b = -1;
assert (b >=1) : “Invalid Denominator”; int = a / b;
System.out.println (c);
}
}
What is the result of running the code with the –ea option?

• A. -10
• B. An AssertionError is thrown.
• C. A compilation error occurs.

Answer: C

NEW QUESTION 6
Given the records from the Employee table:

and given the code fragment: try {
Connection conn = DriverManager.getConnection (URL, userName, passWord); Statement st = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE);
st.execute(“SELECT*FROM Employee”); ResultSet rs = st.getResultSet();
while (rs.next()) {
if (rs.getInt(1) ==112) { rs.updateString(2, “Jack”);
}
}
rs.absolute(2);
System.out.println(rs.getInt(1) + “ “ + rs.getString(2));
} catch (SQLException ex) { System.out.println(“Exception is raised”);
}
Assume that:
The required database driver is configured in the classpath.
The appropriate database accessible with the URL, userName, and passWord exists. What is the result?

• A. The Employee table is updated with the row: 112 Jackand the program prints: 112 Jerry
• B. The Employee table is updated with the row: 112 Jackand the program prints: 112 Jack
• C. The Employee table is not updated and the program prints: 112 Jerry
• D. The program prints Exception is raised.

Answer: A

NEW QUESTION 7
Which statement is true about java.util.stream.Stream?

• A. A stream cannot be consumed more than once.
• B. The execution mode of streams can be changed during processing.
• C. Streams are intended to modify the source data.
• D. A parallel stream is always faster than an equivalent sequential stream.

Answer: B

NEW QUESTION 8
Given the code fragment: Stream<List<String>> iStr= Stream.of ( Arrays.asList (“1”, “John”),
Arrays.asList (“2”, null)0;
Stream<<String> nInSt = iStr.flatMapToInt ((x) -> x.stream ()); nInSt.forEach (System.out :: print);
What is the result?

• A. 1John2null
• B. 12
• C. A NullPointerException is thrown at run time.
• D. A compilation error occurs.

Answer: D

NEW QUESTION 9
Which code fragment is required to load a JDBC 3.0 driver?

• A. Connection con = Connection.getDriver (“jdbc:xyzdata://localhost:3306/EmployeeDB”);
• B. Class.forName(“org.xyzdata.jdbc.NetworkDriver”);
• C. Connection con = DriverManager.getConnection (“jdbc:xyzdata://localhost:3306/EmployeeDB”);
• D. DriverManager.loadDriver (“org.xyzdata.jdbc.NetworkDriver”);

Answer: B

NEW QUESTION 10
Given the code fragment:

Which should be inserted into line n1 to print Average = 2.5?

• A. IntStream str = Stream.of (1, 2, 3, 4);
• B. IntStream str = IntStream.of (1, 2, 3, 4);
• C. DoubleStream str = Stream.of (1.0, 2.0, 3.0, 4.0);
• D. Stream str = Stream.of (1, 2, 3, 4);

Answer: C

NEW QUESTION 11
Given:
IntStream stream = IntStream.of (1,2,3); IntFunction<Integer> inFu= x -> y -> x*y; //line n1
IntStream newStream = stream.map(inFu.apply(10)); //line n2 newStream.forEach(System.output::print);
Which modification enables the code fragment to compile?

• A. Replace line n1 with: IntFunction<UnaryOperator> inFu = x -> y -> x*y;
• B. Replace line n1 with: IntFunction<IntUnaryOperator> inFu = x -> y -> x*y;
• C. Replace line n1 with: BiFunction<IntUnaryOperator> inFu = x -> y -> x*y;
• D. Replace line n2 with:IntStream newStream = stream.map(inFu.applyAsInt (10));

Answer: B

NEW QUESTION 12
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 n3.
• B. A compilation error occurs at line n1.
• C. A compilation error occurs at line n2.
• D. The code prints the content of the employee.txt file and throws an exception at line n3.

Answer: D

NEW QUESTION 13
Given the definition of the Vehicle class: class Vehicle {
String name;
void setName (String name) { this.name = name;
}
String getName() { return name;
}
}
Which action encapsulates the Vehicle class?

• A. Make the Vehicle class public.
• B. Make the name variable public.
• C. Make the setName method public.
• D. Make the name variable private.
• E. Make the setName method private.
• F. Make the getName method private.

Answer: D

NEW QUESTION 14
Given:

What is the result?

• A. Bar Hello Foo Hello
• B. Bar Hello Baz Hello
• C. Baz Hello
• D. A compilation error occurs in the Daze class.

Answer: C

NEW QUESTION 15
Given the Greetings.properties file, containing:

and given:

What is the result?

• A. Compilation fails.
• B. GOODBY_MSG
• C. Hello, everyone!
• D. Goodbye everyone!
• E. HELLO_MSG

Answer: A

NEW QUESTION 16
Given the code fragment:

and the information:
The required database driver is configured in the classpath.
The appropriate database is accessible with the dbURL, username, and passWord exists. What is the result?

• A. A ClassNotFoundException is thrown at runtime.
• B. The program prints nothing.
• C. The program prints Connection Established.
• D. A SQLException is thrown at runtime.

Answer: C