Convert this C++ code to Java code this code is to encrypt and decrypt strings o

Question

Convert this C++ code to Java code

this code is to encrypt and decrypt strings of characters using Caesar cipher

please attach samples run of the code

#include <iostream>
#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <string>

#define MAX_SIZE 200

void encrypt_str(char xyz[], int key); // Function prototype for the function to encrypt the input string.
void decrypt_str(char xyz[], int key); // Function prototype for the function to decrypt the encrypted string.

using namespace std;

int main()
{
char input_str[MAX_SIZE];
int shift = 6; // This is the Caesar encryption key... You can change it to whatever value you wish!

system("cls"); // System call to clear the console screen!

cout<<" Enter the string to be encrypted : ";
gets(input_str); // Getting the user to input the string to be encrypted!

cout<<" Original string: " << input_str;

// Function call to encrypt the input string
encrypt_str(input_str, shift);

return 0;
}

// Function Definition for the function to encrypt the input string

void encrypt_str(char xyz[], int key){
char crypted_str[MAX_SIZE]; // To store the resulting string
int k=0; // For indexing purpose
char str;

while(xyz[k] !='') // Processing each character of the string until the "end of line" character is met
{
str = toupper(xyz[k]); // Remove "toupper" from this line if you don't wish to see the
// result string in Uppercase...
if(str != ' ') str += key;
{
if(str > 'z') str -=26;
{
crypted_str[k] = str;
k++;
}
}
}
crypted_str[k]='';
cout << " Encrypted string is: " << crypted_str; // Displaying the Crypted String

// Function call to decrypt the encrypted string
decrypt_str(crypted_str, key);
}

// Function Definition for the function to decrypt the encrypted string.
void decrypt_str(char xyz[], int key){
char decrypted_str[MAX_SIZE];
char str;
int k=0;
while(xyz[k] !='')
{
str = xyz[k];
if(str != ' ') str -= key;
{
if(str < 'A' && str !=' ') str += 26;
{
decrypted_str[k] = str;
k++;
}
}
}
decrypted_str[k]='';
cout << " Decrypted string is: " << decrypted_str;
}

Explanation / Answer

import javax.swing.JOptionPane; public class CaesarCipher {   public static void main(String[] args)     {       //gets a string to encrypt       String str = (JOptionPane.showInputDialog("Input Data to encypt:"));          //gets a key         String key = (JOptionPane.showInputDialog("Input the key:"));         int keyLength=key.length();           //prints encryption         String encrypted = encrypt(str, keyLength);         System.out.println("Encrypted:" + encrypted);         //prints decryption         String decrypted = decrypt(encrypted, keyLength);         System.out.println("Decrypted:" + decrypted);                   //prints key         System.out.println("Key:" + key);                     }     public static String encrypt(String str, int keyLength)     {         String encrypted = "";         for(int i = 0; i 'Z')                 c = c - 26;             }             else if (Character.isLowerCase(c))             {                 c = c + (keyLength % 26);                 if (c > 'z')                 c = c - 26;             } encrypted += (char) c;         }     return encrypted;     }     public static String decrypt(String str, int keyLength) 58     { 59         String decrypted = ""; 60         for(int i = 0; i

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