Which code fragment prints 100 random numbers?

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

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Which interface in the java.util.function package can return a primitive type?

• A.BiFunction
• B.ToDoubleFunction
• C.Supplier
• D.LongConsumer

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Given the code fragment:

You want to examine whether path is a directory.
Which code inserted on line 1 will accomplish this?

• A.BasicFileAttributes attributes = Files.readAttributes(path, BasicFileAttributes.class
• B.BasicFileAttributes attributes =Files.getAttribute (path, ''insdirectory'');
• C.BasicFileAttributes attributes = Files, readAttributes (path, FileAttributes, class);
• D.BasicFileAttributes attributes = Files isDirectory (path);

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Given:

What is the result?

• A.6910 3
• B.10126 3
• C.3
• D.6104 3

Correct Answer: D

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Given this enum declaration:

Examine this code:
System.out.println(Alphabet.getFirstLetter());
What code should be written at line 3 to make this code print A?

• A.final String getFirstLetter() { return A.toString(); }
• B.static String getFirstLetter() { return Alphabet.values()[1].toString(); }
• C.String getFirstLetter() { return A.toString(); }
• D.static String getFirstLetter() { return A.toString(); }

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