public class StringModification $\{$

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

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

String inputString;

inputString $=$ scnr$.$nextLine$()$;

if $($Character$.$isDigit$($inputString$(4)))\{$

System.out.println$("$The fifth character is digit: $"+$inputString$)$;

$\}$

else $\{$

System.out.println$("$The fifth character is not a digit."$)$;

$\}$

$\}$

$\}$