NEW QUESTION 1
Given:

and the code fragment:

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: D

NEW QUESTION 2
Which two methods from the java.util.stream.Stream interface perform a reduction operation? (Choose two.)

• A. count ()
• B. collect ()
• C. distinct ()
• D. peek ()
• E. filter ()

Answer: AB

NEW QUESTION 3
Given:
class Vehicle { int vno;
String name;
public Vehicle (int vno, String name) { this.vno = vno,;
this.name = name;
}
public String toString () { return vno + “:” + name;
}
}
and this code fragment:
Set<Vehicle> vehicles = new TreeSet <> (); vehicles.add(new Vehicle (10123, “Ford”)); vehicles.add(new Vehicle (10124, “BMW”)); System.out.println(vehicles);
What is the result?

• A. 10123 Ford10124 BMW
• B. 10124 BMW10123 Ford
• C. A compilation error occurs.
• D. A ClassCastException is thrown at run time.

Answer: D

NEW QUESTION 4
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.ready()) { //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. ur :: va
• B. ueJa
• C. The program prints nothing.
• D. A compilation error occurs at line n1.

Answer: B

NEW QUESTION 5
Given:

and the code fragment:

Which modification enables the code fragment to print Speaker?

• A. Implement Predicate in the Product.ProductFilter class and replace line n2 with .filter (p-> p.ProductFilter.test (p))
• B. Replace line n1 with:public static boolean isAvailable (Product p) {
• C. Replace line n2 with:.filter (p -> p.ProductFilter: :isAvailable (p))
• D. Replace line n2 with:.filter (p -> Product: :ProductFilter: :isAvailable ())

Answer: B

NEW QUESTION 6
Given that data.txt and alldata.txt are accessible, and the code fragment:

What is required at line n1 to enable the code to overwrite alldata.txt with data.txt?

• A. br.close();
• B. bw.writeln();
• C. br.flush();
• D. bw.flush();

Answer: D

NEW QUESTION 7
Assume customers.txt is accessible and contains multiple lines. Which code fragment prints the contents of the customers.txt file?

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

Answer: A

NEW QUESTION 8
Given the definition of the Vehicle class:
Class Vehhicle {
int distance; //line n1 Vehicle (int x) {
this distance = x;
}
public void increSpeed(int time) { //line n2 int timeTravel = time; //line n3
class Car { int value = 0;
public void speed () {
value = distance /timeTravel;
System.out.println (“Velocity with new speed”+value+”kmph”);
}
}
new Car().speed();
}
}
and this code fragment: Vehicle v = new Vehicle (100); v.increSpeed(60);
What is the result?

• A. Velocity with new speed
• B. A compilation error occurs at line n1.
• C. A compilation error occurs at line n2.
• D. A compilation error occurs at line n3.

Answer: A

NEW QUESTION 9
Given:
public class Canvas implements Drawable { public void draw () { }
}
public abstract class Board extends Canvas { }
public class Paper extends Canvas { protected void draw (int color) { }
}
public class Frame extends Canvas implements Drawable { public void resize () { }
}
public interface Drawable { public abstract void draw ();
}
Which statement is true?

• A. Board does not compile.
• B. Paper does not compile.
• C. Frame does not compile.
• D. Drawable does not compile.
• E. All classes compile successfully.

Answer: E

NEW QUESTION 10
Which two statements are true about synchronization and locks? (Choose two.)

• A. A thread automatically acquires the intrinsic lock on a synchronized statement when executed.
• B. The intrinsic lock will be retained by a thread if return from a synchronized method is caused by an uncaught exception.
• C. A thread exclusively owns the intrinsic lock of an object between the time it acquires the lock and the time itreleases it.
• D. A thread automatically acquires the intrinsic lock on a synchronized method’s object when entering that method.
• E. Threads cannot acquire intrinsic locks on classes.

Answer: AB

NEW QUESTION 11
Given the code fragment:

Assume that the value of now is 6:30 in the morning. What is the result?

• A. An exception is thrown at run time.
• B. 60
• C. 1

Answer:

NEW QUESTION 12
Given the code fragment:
List<String> codes = Arrays.asList (“DOC”, “MPEG”, “JPEG”); codes.forEach (c -> System.out.print(c + “ “));
String fmt = codes.stream()
.filter (s-> s.contains (“PEG”))
.r educe((s, t) -> s + t).get(); System.out.println(“n” + fmt); What is the result?

• A. DOC MPEG JPEG MPEGJPEG
• B. DOC MPEG MPEGJPEG MPEGMPEGJPEG
• C. MPEGJPEG MPEGJPEG
• D. The order of the output is unpredictable.

Answer: A

NEW QUESTION 13
Given the code fragment:

What is the result?

• A. 5 : 3 : 6
• B. 6 : 5 : 6
• C. 3 : 3 : 4
• D. 4 : 4 : 4

Answer: D

NEW QUESTION 14
Given the code fragment:

Which modification enables the code to print Price 5 New Price 4?

• A. Replace line n2 with .map (n -> System.out.println (“New Price” + n –1)) and remove line n3
• B. Replace line n2 with .mapToInt (n -> n – 1);
• C. Replace line n1 with .forEach (e -> System.out.print (“Price” + e))
• D. Replace line n3 with .forEach (n -> System.out.println (“New Price” + n));

Answer: A

NEW QUESTION 15
Given the code fragments:
interface CourseFilter extends Predicate<String> { public default boolean test (String str) {
return str.equals (“Java”);
}
}
and
List<String> strs = Arrays.asList(“Java”, “Java EE”, “Java ME”); Predicate<String> cf1 = s - > s.length() > 3;
Predicate cf2 = new CourseFilter() { //line n1 public boolean test (String s) {
return s.contains (“Java”);
}
};
long c = strs.stream()
.filter(cf1)
.f ilter(cf2 //line n2
.count(); System.out.println(c); What is the result?

• A. 2
• B. 3
• C. A compilation error occurs at line n1.
• D. A compilation error occurs at line n2.

Answer: B

NEW QUESTION 16
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