Develop a Java application that uses a type of encrypted alphabet, called a random monoalphabetic cipher, to encrypt and decrypt a message. Your encryption key and message are to be read in from two different files and then the encrypted message will be output to third file. Then the encrypted message is read in and decrypt to a fourth file.

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Least square fit to polynomial write a function leastsquarefit3pol that solves a linear system of equations to find a least squares fit of a third order polynomial to an experimental data set given as two row arrays. the function leastsquarefit3pol must explicitly solve a set of linear equations and cannot use polyfit. there should be no restriction on the size of the problem that can be solved.

Use the keyword strategy to remember the meaning of the following word. the meaning for the word has been provided. write your keyword and describe the picture you would create in your mind. obfuscate: to make something so confusing that it is difficult to understand.