Read a $2-$character string from input into variable inString. Declare a Boolean variable isValid and assign isValid with true if the following conditions are met:

inString does not contain two of the same character.

For alphabetic characters, inString does not contain two of the same letter $($regardless of case$).$

Otherwise, assign isValid with false.

Ex: If the input is $1-,$ then isValid is assigned with true, so the output is:

String is valid

Ex: If the input is Yy$,$ then isValid is assigned with false, so the output is:

String is not valid

Note: Use inString $=$ scnr$.$nextLine $()$ to read the entire line from input into inString.

import java.util.scanner;

public class stringchecker $\{$

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

Scanner scnr $=$ new Scanner$($

System.in$)$;

String instring;

V$*$ Your code goes here $*/$

if $($isvalid$)\{$

System.out.println$("$String is valid"$)$;

$\}$

else $\{$

$\}$

System.out.println$("$String is not valid"$)$;

$\}$

$\}$