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a java program Lab 5. Encryption

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solution


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;;Lab 5. Encryption;Purpose;The purpose of this lab is to practice using strings and arrays, methods and parameters.;Problem description;You will write a program that first encrypts then decrypts a message. Here's how a;plaintext string is encrypted;? a 'keyword' is provided e.g. "elvis;? the keyword is used to build an 'alphabet' string, as follows;- alphabet begins with the keyword e.g.;e l v i s;- now the remaining letters 'a' through 'z' are added to the end of alphabet in order.;If a letter occurs in keyword, it is not appended to alphabet. (We will work only;with lowercase for simplicity) e.g.;e l v i s a b

 

Paper#68794 | Written in 18-Jul-2015

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