Variables

In this section, we’ll dive into variables in C. A variable is a storage container for data that is capable of holding different values that may change or update as programs execute. Your program can read the contents of a variable, update the contents of a variable, and display the value of a variable on the screen. Computer programs can use variables in order to remember useful information that the programs can then use later in the code.

• Lecture

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  • Lecture Notes

• Shorts

  • Magic Numbers
  • Variables (Vivla)

• Notes

  • Variables

• Submit your answers & your program to CANVAS as a variables.c file

  • Why do we need variables?
  • What would happen to our programs if we couldn’t use variables?
  • If we didn’t have access to variables, how would this affect your program?

• Write a program that:

  • novice coder: create a program that adds two numbers together given by a user
  • comfy coder: create a program that finds the average of three positive numbers given by a user
  • l33t coder: create a program that finds the square of a number given by a user

  • neo: create a program that when two numbers are given the output results in a swap of values

    • Output of program:
    • Enter two integers
    • 23
    • 45
    • Before Swapping
    • First integer = 23
    • Second integer = 45
    • After Swapping
    • First integer = 45
    • Second integer = 23