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File encryption is the science of writing the contents of a file in a secret code. Write an encryption program in Java that should work like a filter - reading the contents of one file, modifying the data into a code, and then writing the coded contents out to a second file. The second file will be a version of the first file, but written in a secret code.
Although there are complex encryption techniques, you should come up with a simple one of your own. For example, you could read the first file one character at a time, and add 10 to the character code of each character before it is written to the second file.
Write another Java program that decrypts the file produced by above program. The decryption program should read the contents of the coded file, restore the data to its original state, and write it to another file.
consider the ways in which you can optimize a file in order to reduce file size and maintain quality. What factors would you consider.
CNT Books has expanded considerably as you first got network up and running three years ago. It at the present occupies an entire floor in building, and its LAN has full-grown to contain several servers and more than 60 workstations.
When are they appropriate? When is it better not to use them? Can you give me an examples.
explain when and why the International Standards Organization developed the OSI model.
In some programming languages a comment can be enclosed either in braces {} or in the symbols (* *). How do you think a scanner will group the four symbols {, }, (*, *) for purposes of classification i.e. would each symbol be given its own classif..
What do you tell him is the difference between a worm and a Trojan horse. List at least six reasons you can give John for preventing viruses and other malware.
make Use of an array for the mortgage data for the different loans. show the mortgage payment amount followed by the loan balance and interest paid for each payment over the term of the loan.
While there is backward compatibility between the various versions of the software, the older versions do not have all of the "bells and whistles" of the newer versions.
Write down a recurrence relation
Explain the differences in the information policy for a small organization vs. a large one? Whether you think an information policy may be different in a public vs. private or the regulated vs. non regulated industry?
Search for arithmetic operators used in programming, and give two examples where you cannot use logical operators but you can use arithmetic operators. Also, think of two examples where both kinds of operators are used.
List the top advantages of migrating to IPv6
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