Question: PART I. SHIFT CIPHER First study Shift Cipher and develop a program (in Java or Python) to encrypt and decrypt messages using the Shift Cipher.

PART I. SHIFT CIPHER First study Shift Cipher and develop a program (in Java or Python) to encrypt and decrypt messages using the Shift Cipher. Your program should behave as following: 1. Ask the user if they want to encrypt or decrypt a message or quit the program. 2. Ask the user for the key 3. Ask the user for the message 4. Print out the encrypted or decrypted message. 5. Go back to step 1. Please submit the following two (2) files: 1. Source code (.java or .py file) 2. Testing results PDF file. In this file, you should show two (2) examples of encryption and two (2) examples or decryption

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2. What do the others in the network want to achieve?

1. What do I want to achieve?

3. To understand a method for achieving personal communication mastery.