Discussing Variables and Constants
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Define and study the terms "variable" and "constant" as used in computer programming. Determine the various types of data (such as char, int, double, string, and date) that can be used in developing a solution. Describe how and when you would use one over the other in a simple solution to calculate the grade average for a class. Each student record includes the student's name, homework grades, test grades, and participation grades.
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This solution helps go through variables and constants within the concept of programming languages.
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A "variable" in the computer terminology refers to a place in memory where information is kept. It is a placeholder that can be updated with new data when required, hence the name variable. For example, the speed of a car is variable and a program that tracks the movement of a car can use a variable to store its speed.
On the other hand, a constant, is also a placeholder for data, but only meant to be filled in once. A constant can be used with some data that never changes. For example, the value of PI ...
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