Java OCA OCP Practice Question 2898

Question

Assuming /data/employee.csv exists as a regular non-empty file that a program has access to read, what is correct about the following code snippet? (Choose all that apply.). 


Path path = Paths.get("/data/employee.csv"); 
Files.lines(path) // r1 
   .flatMap(p -> Stream.of(p.split(",")))  // r2 
   .map(s -> s.toUpperCase())  // r3 
   .forEach(System.out::println);
  • A. It compiles but may throw an exception at runtime.
  • B. The code will not compile because of line r1.
  • C. The code will not compile because of line r2.
  • D. The code will not compile because of line r3.
  • E. It may not print anything at runtime.
  • F. If it prints anything, it will not include commas.


F.

Note

The code compiles without issue, so B, C, and D are incorrect.

The code snippet breaks a file into lines and then further separates the lines by commas using the flatMap() method.

The result is printed with one entry on a single line, but all original line breaks and commas from the file are removed; therefore F is correct.

Since we are told that the file is non-empty and regular, and the program has access to read it, A and E are incorrect.




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