Given the code fragments:

and

What is the result?

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?

Given the code fragment:
Map<Integer, String> books = new TreeMap<>();
books.put (1007, "A");
books.put (1002, "C");
books.put (1003, "B");
books.put (1003, "B");
System.out.println (books);
What is the result?

Which statement is true about the single abstract method of the java.util.function.Function interface?

Given the code fragments:

and

What is the result?
France