Write a computer program that uses Caesar cipher to do encryption and decryption. Your program has two parts: one for encryption and one for decryption

$($a$)$ Encryption: Your program first asks the user to enter a key $($password$)$ which is a number such as $3$ or $7.$ Then it asks for the plaintext to encrypt, your program uses modulo operations to do the encryption and displays the ciphertext. Make it a loop if the key numbers are not either $3$ or $7,$ and a function to either try again or end the program.

$($b$)$ Decryption: Your program asks the user to enter a key $($password$)$ which is a number such as $3$ or $7.$ Then it asks for the ciphertext to decrypt, your program uses modulo operations to do the decryption and displays the plaintext. Make it a loop if the key numbers are not either $3$ or $7,$ and a function to either try again or end the program.

Fully test your program:

$($c$)$ Jgrasp

$($d$)$ java python