Can you make this code meet this condition$($Your system should encrypt$/$decrypt all text files in a given folder or single text file$)$ to this code import java.util.Scanner; public class AffineCipher $\{//$ Function to calculate the greatest common divisor $($gcd$)$ of two numbers public static int gcd$($int a$,$ int m$)\{$ while $($m $!=0)\{$ int temp $=$ m; m $=$ a $\%$ m; a $=$ temp; $\}$ return a; $//$ Return the gcd $\}//$ Function to encrypt the text using the Affine Cipher algorithm public static String encrypt$($String text, int a$,$ int b$)\{$ String result $=$ new String$()$; $//$ Create an empty string to hold the encrypted text for $($int i $=0$; i $<$ text.length$()$; i$++)\{//$ Loop through each character in the text char ch $=$ text.charAt$($i$)$; $//$ Get the current character if $($Character$.$isLetter$($ch$))\{//$ Check if the character is a letter char base; $//$ Variable to determine the base character $($A or a$)$ if $($Character$.$isUpperCase$($ch$))\{//$ If the character is uppercase base $=\text{'}$A$\text{'}$; $//$ Set base for uppercase $\}$ else $\{$ base $=\text{'}$a$\text{'}$; $//$ Set base for lowercase $\}$ int x $=$ ch $-$ base; $//$ Calculate the position of the character relative to the base char encryptedChar $=($char$)(($a $*$ x $+$ b$)\%26+$ base$)$; $//$ Apply the encryption formula result $+=$ encryptedChar; $//$ Append the encrypted character to the result $\}$ else $\{$ result $+=$ ch; $//$ If it's not a letter, append the character as is $\}\}$ return result; $//$ Return the encrypted text $\}//$ Function to decrypt the encrypted text public static String decrypt$($String cipher, int a$,$ int b$)\{$ String result $=$ new String$()$; $//$ Create an empty string to hold the decrypted text int a$\_$inv $=0$; $//$ Variable to hold the multiplicative inverse of a for $($int i $=0$; i $<26$; i$++)\{//$ Find the multiplicative inverse of a if $(($a $*$ i$)\%26==1)\{//$ If the result is $1,$ we found the inverse a$\_$inv $=$ i; $//$ Set the inverse value break; $//$ Exit the loop $\}\}$ for $($int i $=0$; i $<$ cipher.length$()$; i$++)\{//$ Loop through each character in the cipher text char ch $=$ cipher.charAt$($i$)$; $//$ Get the current character if $($Character$.$isLetter$($ch$))\{//$ Check if the character is a letter char base; $//$ Variable to determine the base character if $($Character$.$isUpperCase$($ch$))\{//$ If the character is uppercase base $=\text{'}$A$\text{'}$; $//$ Set base for uppercase $\}$ else $\{$ base $=\text{'}$a$\text{'}$; $//$ Set base for lowercase $\}$ int y $=$ ch $-$ base; $//$ Calculate the position of the character relative to the base char decryptedChar $=($char$)(($a$\_$inv $*($y $-$ b $+26))\%26+$ base$)$; $//$ Apply the decryption formula result $+=$ decryptedChar; $//$ Append the decrypted character to the result $\}$ else $\{$ result $+=$ ch; $//$ If it's not a letter, append the character as is $\}\}$ return result; $//$ Return the decrypted text $\}//$ Function to ensure the input number is coprime with $26$ public static int getValidA$($Scanner scanner$)\{$ int a; $//$ Variable to store the value of a while $($true$)\{//$ Infinite loop to get a valid input System.out.print$("$Enter a $($must be coprime with $26)$: $")$; $//$ ask for a a $=$ getIntInput$($scanner$)$; $//$ Get the valid integer input if $($gcd$($a$,26)==1)\{//$ If a is coprime with $26$ break; $\}$ else $\{$ System.out.println$("$Error: a must be coprime with $26.")$; $\}\}$ return a; $//$ Return the valid value of a $\}//$ Function to check if the input string contains only letters public static boolean isLitter$($String text$)\{$ return text.matches$("[$a$-$zA$-$Z$]+")$; $//$ Return true if the input consists of only letters $\}//$ Function to validate numerical inputs public static int getIntInput$($Scanner scanner$)\{$ while $(!$scanner.hasNextInt$())\{//$ While the input is not an integer System.out.println$("$Error: Please enter a valid integer."$)$; scanner.next$()$; $//$ Ignore the invalid input $\}$ return scanner.nextInt$()$; $//$ Return the valid integer input $\}//$ Function to ensure the input text is not empty public static String getnotempty$($Scanner scanner$)\{$ String input; $//$ Variable to store the input do $\{$ System.out.print$("$Enter the text: $")$; $//$ ask for text input input $=$ scanner.nextLine$().$trim$()$; $//$ Get the input and remove e