NEW QUESTION 1
Given the code fragments:

and

What is the result?

• A. The program prints Run… and throws an exception.
• B. A compilation error occurs at line n1.
• C. Run…Call…
• D. A compilation error occurs at line n2.

Answer: B

NEW QUESTION 2
Given:
class Worker extends Thread { CyclicBarrier cb;
public Worker(CyclicBarrier cb) { this.cb = cb; } public void run () {
try { cb.await();
System.out.println(“Worker…”);
} catch (Exception ex) { }
}
}
class Master implements Runnable { //line n1 public void run () { System.out.println(“Master…”);
}
}
and the code fragment:
Master master = new Master();
//line n2
Worker worker = new Worker(cb); worker.start();
You have been asked to ensure that the run methods of both the Worker and Master classes are executed. Which modification meets the requirement?

• A. At line n2, insert CyclicBarrier cb = new CyclicBarrier(2, master);
• B. Replace line n1 with class Master extends Thread {
• C. At line n2, insert CyclicBarrier cb = new CyclicBarrier(1, master);
• D. At line n2, insert CyclicBarrier cb = new CyclicBarrier(master);

Answer: C

NEW QUESTION 3
Given the code fragment:
ZonedDateTime depart = ZonedDateTime.of(2015, 1, 15, 3, 0, 0, 0, ZoneID.of(“UTC-
7”));
ZonedDateTime arrive = ZonedDateTime.of(2015, 1, 15, 9, 0, 0, 0, ZoneID.of(“UTC-
5”));
long hrs = ChronoUnit.HOURS.between(depart, arrive); //line n1 System.out.println(“Travel time is” + hrs + “hours”);
What is the result?

• A. Travel time is 4 hours
• B. Travel time is 6 hours
• C. Travel time is 8 hours
• D. An exception is thrown at line n1.

Answer: A

NEW QUESTION 4
Given the code fragment:

What is the result?

• A. A compilation error occurs.
• B. [Java, J2EE, J2ME, JSTL, JSP]
• C. null
• D. [Java, J2EE, J2ME, JSTL]

Answer: A

NEW QUESTION 5
Given the code fragment: public class Foo {
public static void main (String [ ] args) {
Map<Integer, String> unsortMap = new HashMap< > ( ); unsortMap.put (10, “z”);
unsortMap.put (5, “b”);
unsortMap.put (1, “d”);
unsortMap.put (7, “e”);
unsortMap.put (50, “j”);
Map<Integer, String> treeMap = new TreeMap <Integer, String> (new Comparator<Integer> ( ) {
@Override public int compare (Integer o1, Integer o2) {return o2.compareTo
(o1); } } );
treeMap.putAll (unsortMap);
for (Map.Entry<Integer, String> entry : treeMap.entrySet () ) { System.out.print (entry.getValue () + “ “);
}
}
}
What is the result?

• A. A compilation error occurs.
• B. d b e z j
• C. j z e b d
• D. z b d e j

Answer: C

NEW QUESTION 6
Given the code fragment:

Which is the valid definition of the Course enum?

• A. Option A
• B. Option B
• C. Option C
• D. Option D

Answer: A

NEW QUESTION 7
Given the code fragment:

What is the result ?

• A. [X][X, X][X, X, X][X, X, X, X]
• B. [X, X]
• C. [X][X, X][X, X, X]
• D. [X, X][X, X, X, X]

Answer: A

NEW QUESTION 8
Given:
class ImageScanner implements AutoCloseable { public void close () throws Exception { System.out.print (“Scanner closed.”);
}
public void scanImage () throws Exception { System.out.print (“Scan.”);
throw new Exception(“Unable to scan.”);
}
}
class ImagePrinter implements AutoCloseable { public void close () throws Exception { System.out.print (“Printer closed.”);
}
public void printImage () {System.out.print(“Print.”); }
}
and this code fragment:
try (ImageScanner ir = new ImageScanner(); ImagePrinter iw = new ImagePrinter()) { ir.scanImage();
iw.printImage();
} catch (Exception e) { System.out.print(e.getMessage());
}
What is the result?

• A. Scan.Printer close
• B. Scanner close
• C. Unable to scan.
• D. Scan.Scanner close
• E. Unable to scan.
• F. Sca
• G. Unable to scan.
• H. Sca
• I. Unable to sca
• J. Printer closed.

Answer: A

NEW QUESTION 9
Given the code fragment:
List<Integer> list1 = Arrays.asList(10, 20); List<Integer> list2 = Arrays.asList(15, 30);
//line n1
Which code fragment, when inserted at line n1, prints 10 20 15 30?

• A. Stream.of(list1, list2).flatMap(list -> list.stream()).forEach(s -> System.out.print(s + “ “));
• B. Stream.of(list1, list2).flatMap(list -> list.intStream()).forEach(s -> System.out.print(s + “ “));
• C. list1.stream().flatMap(list2.stream().flatMap(e1 -> e1.stream()).forEach(s -> System.out.println(s + “ “));
• D. Stream.of(list1, list2).flatMapToInt(list -> list.stream()).forEach(s -> System.out.print(s + “ “));

Answer: A

NEW QUESTION 10
Given the code fragments:

and

What is the result?

• A. FranceOptional[NotFound]
• B. Optional [France] Optional [NotFound]
• C. Optional[France] Not Found
• D. FranceNot Found

Answer: D

NEW QUESTION 11
Given the code fragments :

and

What is the result?

• A. TV Price :110 Refrigerator Price :2100
• B. A compilation error occurs.
• C. TV Price :1000 Refrigerator Price :2000
• D. The program prints nothing.

Answer: C

NEW QUESTION 12
Given:
class Student {
String course, name, city;
public Student (String name, String course, String city) { this.course = course; this.name = name; this.city = city;
}
public String toString() {
return course + “:” + name + “:” + city;
}
and the code fragment: List<Student> stds = Arrays.asList(
new Student (“Jessy”, “Java ME”, “Chicago”), new Student (“Helen”, “Java EE”, “Houston”), new Student (“Mark”, “Java ME”, “Chicago”)); stds.stream()
.collect(Collectors.groupingBy(Student::getCourse))
.f orEach(src, res) -> System.out.println(scr)); What is the result?

• A. [Java EE: Helen:Houston][Java ME: Jessy:Chicago, Java ME: Mark:Chicago]
• B. Java EEJava ME
• C. [Java ME: Jessy:Chicago, Java ME: Mark:Chicago] [Java EE: Helen:Houston]
• D. A compilation error occurs.

Answer: B

NEW QUESTION 13
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 14
Given the code fragment:
class CallerThread implements Callable<String> { String str;
public CallerThread(String s) {this.str=s;} public String call() throws Exception { return str.concat(“Call”);
}
}
and
public static void main (String[] args) throws InterruptedException, ExecutionException
{
ExecutorService es = Executors.newFixedThreadPool(4); //line n1 Future f1 = es.submit (newCallerThread(“Call”));
String str = f1.get().toString(); System.out.println(str);
}
Which statement is true?

• A. The program prints Call Call and terminates.
• B. The program prints Call Call and does not terminate.
• C. A compilation error occurs at line n1.
• D. An ExecutionException is thrown at run time.

Answer: B

NEW QUESTION 15
Given:
interface Doable {
public void doSomething (String s);
}
Which two class definitions compile? (Choose two.)

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

Answer: AE

NEW QUESTION 16

and the code fragment?

What is the result?

• A. $15.00
• B. 15 $
• C. USD 15.00
• D. USD $15

Answer: A

NEW QUESTION 17
Given:
public class Emp { String fName; String lName;
public Emp (String fn, String ln) { fName = fn;
lName = ln;
}
public String getfName() { return fName; } public String getlName() { return lName; }
}
and the code fragment: List<Emp> emp = Arrays.asList ( new Emp (“John”, “Smith”),
new Emp (“Peter”, “Sam”),
new Emp (“Thomas”, “Wale”)); emp.stream()
//line n1
.collect(Collectors.toList());
Which code fragment, when inserted at line n1, sorts the employees list in descending order of fName and then ascending order of lName?

• A. .sorted (Comparator.comparing(Emp::getfName).reserved().thenComparing(Emp::getlName))
• B. .sorted (Comparator.comparing(Emp::getfName).thenComparing(Emp::getlName))
• C. .map(Emp::getfName).sorted(Comparator.reserveOrder())
• D. .map(Emp::getfName).sorted(Comparator.reserveOrder().map (Emp::getlName).reserved

Answer: A

NEW QUESTION 18
Given:
final class Folder { //line n1
//line n2
public void open () { System.out.print(“Open”);
}
}
public class Test {
public static void main (String [] args) throws Exception { try (Folder f = new Folder()) {

• A. f.open();}}}Which two modifications enable the code to print Open Close? (Choose two.)
• B. Replace line n1 with:class Folder implements AutoCloseable {
• C. Replace line n1 with:class Folder extends Closeable {
• D. Replace line n1 with:class Folder extends Exception {
• E. At line n2, insert: final void close () {System.out.print(“Close”);}
• F. At line n2, insert:public void close () throws IOException { System.out.print(“Close”);}

Answer: AE

NEW QUESTION 19
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()
.f orEach(System.out::println); //line n1
} catch (IOException e) { System.out.println(“Exception”);
}
}
);
What is the result?

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

Answer: A

NEW QUESTION 20
Given:

From what threading problem does the program suffer?

• A. race condition
• B. deadlock
• C. starvation
• D. livelock

Answer: B

NEW QUESTION 21
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?

• A. Read Java Programming View http:/ ebook.com/ebook
• B. Read Java Programming Read http:/ ebook.com/ebook
• C. The EBook.java file fails to compile.
• D. The Test.java file fails to compile.

Answer: D

NEW QUESTION 22
Given:

and the code fragment:

What is the result?

• A. A compilation error occurs at line n1.
• B. An Exception is thrown at run time.
• C. 2

Answer: B

NEW QUESTION 23
Given the code fragment:
List<Integer> nums = Arrays.asList (10, 20, 8): System.out.println (
//line n1
);
Which code fragment must be inserted at line n1 to enable the code to print the maximum number in the nums list?

• A. nums.stream().max(Comparator.comparing(a -> a)).get()
• B. nums.stream().max(Integer : : max).get()
• C. nums.stream().max()
• D. nums.stream().map(a -> a).max()

Answer: A

NEW QUESTION 24
Given:
public enum USCurrency { PENNY (1),
NICKLE(5), DIME (10), QUARTER(25);
private int value;
public USCurrency(int value) { this.value = value;
}
public int getValue() {return value;}
}
public class Coin {
public static void main (String[] args) { USCurrency usCoin =new USCurrency.DIME; System.out.println(usCoin.getValue()):
}
}
Which two modifications enable the given code to compile? (Choose two.)

• A. Nest the USCurrency enumeration declaration within the Coin class.
• B. Make the USCurrency enumeration constructor private.
• C. Remove the new keyword from the instantion of usCoin.
• D. Make the getter method of value as a static method.
• E. Add the final keyword in the declaration of value.

Answer: BC

NEW QUESTION 25
Given the code fragment:

Which statement can be inserted into line n1 to print 1,2; 1,10; 2,20;?

• A. BiConsumer<Integer,Integer> c = (i, j) -> {System.out.print (i + “,” + j+ “; “);};
• B. BiFunction<Integer, Integer, String> c = (i, j) –> {System.out.print (i + “,” + j+ “; “)};
• C. BiConsumer<Integer, Integer, String> c = (i, j) –> {System.out.print (i + “,” + j+ “; “)};
• D. BiConsumer<Integer, Integer, Integer> c = (i, j) –> {System.out.print (i + “,”+ j+ “; “);};

Answer: B

NEW QUESTION 26
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