NEW QUESTION 1
Given that these files exist and are accessible:

and given the code fragment:

Which code fragment can be inserted at line n1 to enable the code to print only /company/emp?

• A. Stream<Path> stream = Files.list (Paths.get (“/company”));
• B. Stream<Path> stream = Files.find( Paths.get (“/company”), 1,(p,b) –> b.isDirectory (), FileVisitOption.FOLLOW_LINKS);
• C. Stream<Path> stream = Files.walk (Paths.get (“/company”));
• D. Stream<Path> stream = Files.list (Paths.get (“/company/emp”));

Answer: B

NEW QUESTION 2
Given the code fragment:
String str = “Java is a programming language”; ToIntFunction<String> indexVal = str: : indexOf; //line n1 int x = indexVal.applyAsInt(“Java”); //line n2
System.out.println(x); What is the result?

• A. 1
• B. A compilation error occurs at line n1.
• C. A compilation error occurs at line n2.

Answer: A

NEW QUESTION 3
Given:
class Bird {
public void fly () { System.out.print(“Can fly”); }
}
class Penguin extends Bird {
public void fly () { System.out.print(“Cannot fly”); }
}
and the code fragment: class Birdie {
public static void main (String [ ] args) { fly( ( ) -> new Bird ( ));
fly (Penguin : : new);
}
/* line n1 */
}
Which code fragment, when inserted at line n1, enables the Birdie class to compile?

• A. static void fly (Consumer<Bird> bird) { bird :: fly ();}
• B. static void fly (Consumer<? extends Bird> bird) {bird.accept( ) fly ();}
• C. static void fly (Supplier<Bird> bird) { bird.get( ) fly ();}
• D. static void fly (Supplier<? extends Bird> bird) { LOST

Answer: C

NEW QUESTION 4
Given the code fragment:
List<String> nL = Arrays.asList(“Jim”, “John”, “Jeff”); Function<String, String> funVal = s -> “Hello : “.contact(s); nL.Stream()
.map(funVal)
.peek(System.out::print); What is the result?

• A. Hello : Jim Hello : John Hello : Jeff
• B. Jim John Jeff
• C. The program prints nothing.
• D. A compilation error occurs.

Answer: C

NEW QUESTION 5
Given the code fragment:
List<String> listVal = Arrays.asList(“Joe”, “Paul”, “Alice”, “Tom”); System.out.println (
// line n1
);
Which code fragment, when inserted at line n1, enables the code to print the count of string elements whose length is greater than three?

• A. listVal.stream().filter(x -> x.length()>3).count()
• B. listVal.stream().map(x -> x.length()>3).count()
• C. listVal.stream().peek(x -> x.length()>3).count().get()
• D. listVal.stream().filter(x -> x.length()>3).mapToInt(x -> x).count()

Answer: A

NEW QUESTION 6
Given the code fragment:

Which code fragment, when inserted at line n1, ensures false is printed?

• A. boolean b = cs.stream() .findAny() .get() .equals(“Java”);
• B. boolean b = cs.stream() .anyMatch (w -> w.equals (“Java”));
• C. boolean b = cs.stream() .findFirst() .get() .equals(“Java”);
• D. boolean b = cs.stream() .allMatch(w -> w.equals(“Java”));

Answer: C

NEW QUESTION 7
Given the code fragments:

and

What is the result?

• A. null
• B. A compilation error occurs.
• C. DogCatMouse
• D. [Dog, Cat, Mouse]

Answer: D

NEW QUESTION 8
Given the code fragment:
List<Integer> values = Arrays.asList (1, 2, 3); values.stream ()
.map(n -> n*2) //line n1
.p eek(System.out::print) //line n2
.count();
What is the result?

• A. 246
• B. The code produces no output.
• C. A compilation error occurs at line n1.
• D. A compilation error occurs at line n2.

Answer: A

NEW QUESTION 9
Given the code fragment:

Assume that:
The required database driver is configured in the classpath.
The appropriate database is accessible with the dbURL, userName, and passWord exists The Employee table has a column ID of type integer and the SQL query matches one record. What is the result?

• A. Compilation fails at line 14.
• B. Compilation fails at line 15.
• C. The code prints the employee ID.
• D. The code prints Error.

Answer: A

NEW QUESTION 10
Given the code fragment:

What is the result?

• A. A compilation error occurs at line n1.
• B. Checking…
• C. Checking… Checking…
• D. A compilation error occurs at line n2.

Answer: A

NEW QUESTION 11
Given the code fragment:
Stream<Path> files = Files.walk(Paths.get(System.getProperty(“user.home”))); files.forEach (fName -> { //line n1
try {
Path aPath = fName.toAbsolutePath(); //line n2 System.out.println(fName + “:”
+ Files.readAttributes(aPath, Basic.File.Attributes.class).creationTime ());
} catch (IOException ex) { ex.printStackTrace();
});
What is the result?

• A. All files and directories under the home directory are listed along with their attributes.
• B. A compilation error occurs at line n1.
• C. The files in the home directory are listed along with their attributes.
• D. A compilation error occurs at line n2.

Answer: A

NEW QUESTION 12
Given the content of the employee.txt file: Every worker is a master.
Given that the employee.txt file is accessible and the file allemp.txt does NOT exist, and the code fragment:

What is the result?

• A. Exception 1
• B. Exception 2
• C. The program executes, does NOT affect the system, and produces NO output.
• D. allemp.txt is created and the content of employee.txt is copied to it.

Answer: A

NEW QUESTION 13
Given:
1. abstract class Shape {
2. Shape ( ) { System.out.println (“Shape”); }
3. protected void area ( ) { System.out.println (“Shape”); } 4. }
5.
6. class Square extends Shape {
7. int side;
8. Square int side {
9. /* insert code here */
10. this.side = side;
11. }
12. public void area ( ) { System.out.println (“Square”); }
13. }
14. class Rectangle extends Square {
15. int len, br;
16. Rectangle (int x, int y) {
17. /* insert code here */
18. len = x, br = y;
19. }
20. void area ( ) { System.out.println (“Rectangle”); }
21. }
Which two modifications enable the code to compile? (Choose two.)

• A. At line 1, remove abstract
• B. At line 9, insert super ( );
• C. At line 12, remove public
• D. At line 17, insert super (x);
• E. At line 17, insert super (); super.side = x;
• F. At line 20, use public void area ( ) {

Answer: DF

NEW QUESTION 14
Given the code fragment:

What is the result?

• A. Val:20 Val:40 Val:60
• B. Val:10 Val:20 Val:30
• C. A compilation error occurs.
• D. Val: Val: Val:

Answer: B

NEW QUESTION 15
Given:

Your design requires that:
fuelLevel of Engine must be greater than zero when the start() method is invoked.
The code must terminate if fuelLevel of Engine is less than or equal to zero.
Which code fragment should be added at line n1 to express this invariant condition?

• A. assert (fuelLevel) : “Terminating…”;
• B. assert (fuelLevel > 0) : System.out.println (“Impossible fuel”);
• C. assert fuelLevel < 0: System.exit(0);
• D. assert fuelLevel > 0: “Impossible fuel” ;

Answer: C

NEW QUESTION 16
Given:

Which two interfaces can you use to create lambda expressions? (Choose two.)

• A. T
• B. R
• C. P
• D. S
• E. Q
• F. U

Answer: AF