Given:

and the code fragment:

What is the result?

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

Correct Answer: B

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

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

Correct Answer: A

Which two code blocks correctly initialize a Locale variable? (Choose two.)

1. A. Locale loc1 = "UK";
2. B. Locale loc2 = Locale.getInstance("ru");
3. C. Locale loc3 = Locale.getLocaleFactory("RU");
4. D. Locale loc4 = Locale.UK;
5. E. Locale loc5 = new Locale ("ru", "RU");

Correct Answer: DE

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?

1. A. Board does not compile.
2. B. Paper does not compile.
3. C. Frame does not compile.
4. D. Drawable does not compile.
5. E. All classes compile successfully.

Correct Answer: E

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

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

Correct Answer: D