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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.
Write a GUI program to compute the amount of a certificate of deposit on maturity - prepare a program to evaluate the amount of a certificate of deposit on maturity
Write complete Java program to read, from keyboard, a student's first and last name and six grades. It will display on screen last name then first letter of first name with a period.
Write an application that prompts an employee for an hourly pay rate and hours worked. If any of the fields is empty, prompt the user to key in all details completely. Compute gross pay (hours times rate), withholding tax and net pay (gross pay mi..
Question 1: Write a java program to compute the squares of the numbers in the array list like 1, 2, 3, 4... up to 50. Question 2: Write a java program to compute the sum of numbers and average in the array list up to 50.
What is the output of the following Java program? Explain in terms of how parameters are passed in Java.import java.awt.*;class PointParameters
Alicia creates a button using the code JButton exitButton = new JButton("exit"); and places it into a JFrame named mainFrame
Write a program that takes cents as an integer and converts it to dollars and cents and the conversion should be done in a function called NormalizeMoney.
Write a program that lets the user click on the panel to dynamically create points. Initially, the panel is empty. When a panel has two or more points, highlight the pair of closest points. Whenever a new point is created, a new pair of closest po..
given a hash function hkey prepare a java simulation program to determine each of the subsequent quantities after
Write a program that reads these test scores into an array and computes:Sum of the test scores after dropping the minimum test scoreAverage of the test scores
b)How much cylinder skew is needed for an Oceangate disk operating at 20,000 rpm(new series for the Christmas promotions) which has a seek time of 0.5 milliseconds? This disk has 800 sectors of 512 bytes each on each track.
Write a method called range that accepts an array of integers and returns the range of values in the array. The range is defined as 1 more than the difference between the maximum and minimum values in the array. For example, if an array called list c..
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