pls help java

Write a program that reads a person's first and last names separated by a space, assuming the first and last names are both single words. Then the program outputs last name, first name. End with newline. Example output if the input is: Maya Jones Jones, Maya See How to Use zyBooks for info on how our automated program grader works. Common student error Your code did not use next() to get a string from input, but should do so, Failed to compile SpaceReplace.java:9: error: variable lastName might not have been initialized System. out.println( lastName +", " + firstName + " ); SpaceReplace.java:9: error: variable firstName might not have been initialized System. out.println ( lastName +","+ firstName +" ); 2 errorg View your last submission v