Caesar Cipher in Java (Encryption and Decryption)

Here you will get program for caesar cipher in Java for encryption and decryption. Caesar Cipher is an encryption algorithm in which each alphabet present in plain text is replaced by alphabet some fixed number of positions down to it. Take below example. Plain Text: ABCD Key: 3 Cipher Text (Encrypted Message): DEFG As key is 3 so each alphabet will be replaced by an alphabet 3 places down to it. To decrypt a cipher text, the reverse of encryption process is followed.

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