Learn ICSE Java App: https://play.google.com/store/apps/details?id=amazingapps.learnjava
(You can download the above app, goto program section and search for Caesar Cipher. You will get this program there)
Other videos on String: https://www.youtube.com/playlist?list=PLGsRpMr9gXDf1T7KqCVJfZcXfFncD6zoA
ISC Practical 2017 Question: Caesar Cipher is an encryption technique which is implemented as ROT13 (‘rotate by 13 places’). It is a simple letter substitution cipher that replaces a letter with the letter 13 places after it in the alphabets, with the other characters remaining unchanged.
Write a program to accept a plain text of length L, where L must be greater than 3 and less than 100.
Encrypt the text if valid as per the Caesar Cipher.
Test your program with the sample data and some random data:
Example 1
INPUT : Hello! How are you?
OUTPUT : The cipher text is:
Uryyb? Ubj ner lbh?
Example 2
INPUT : Encryption helps to secure data.
OUTPUT : The cipher text is:
Rapelcgvba urycf gb frpher qngn.
Example 3
INPUT : You
OUTPUT : INVALID LENGTH
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