IT217: Programming Language Week 4

Read chapter 4 from the textbook and the lesson in chapter 4 from the weekly module.

Answer the following questions:

1. What is a variable?

  1. When assigning names to variables, what are the rules to follow?
  2. What is the difference between a local variable and a global variable?
  3. What string function should you use to return a numeric value representing the number of characters of a string?
  4. Why is the use of arrays important in programming?

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You are required to make at least two comments on the responses posted by your classmates with a minimum of 50 words. Make sure you design your response with your own words. Your responses to your classmates must be of substance; not just “I agree” or “Good Post.” The purpose of the responses is to convert the discussion forum into a quality academic environment through which you improve your knowledge and understanding. Read and review all assigned course materials and chapters before you start working on your assignments.

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