Getting errors

import java.util.Scanner;

public class ParseStrings $\{$

public static void main$($String$[]$ args$)\{$

$//$Scanner

Scanner input $=$ new Scanner$($System$.$in$)$;

String personsInput;

while $($true$)\{$

System.out.println $("$Enter input string: $")$;

personsInput $=$ input.nextLine$().$trim$()$;

$//$Input check

if $($personsInput$.$equalsIgnoreCase$("$q$"))\{$

break;

$\}$

$//$Comma check

if $(!$personsInput.contains$(","))\{$

System.out.println$("$Error: No comma in string"$)$;

continue;

$\}$

$//$Splitting input

String$[]$ str $=$ personsInput.split$(",")$;

$//$Trimming spaces

String firstWord $=$ str$[0].$trim$()$;

String secondWord $=$ str$[1].$trim$()$;

$//$Strings output

System.out.println$("$First word: $"+$ firstWord$)$;

System.out.println$("$Second word: $"+$ secondWord$)$;

$\}$

input.close$()$;

$\}$

$\}$