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Computer Science 111

Computer Science 111. Fundamentals of Programming I Developing and Testing Programs. Start with a User Request. Write a program that converts pounds to kilograms. Determine the Inputs and Outputs. The input will be the number of pounds, as an integer or floating-point number

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Computer Science 111

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  1. Computer Science 111 Fundamentals of Programming I Developing and Testing Programs

  2. Start with a User Request Write a program that converts pounds to kilograms.

  3. Determine the Inputs and Outputs • The input will be the number of pounds, as an integer or floating-point number • The output will be • a prompt for the number of pounds • A label, and the number of kilograms as a floating-point number

  4. Example Session with the Program Enter the number of pounds: 330 The number of kilograms is 150.0

  5. Gather Information About the Problem There are 2.2 pounds in a kilogram

  6. Design the Algorithm in Pseudocode Prompt the user for the number of pounds Input pounds Set kilograms to pounds / 2.2 Output the number of kilograms

  7. Code as the convert Script """ File: convert.py This program converts pounds to kilograms. Input: the number of pounds, as an integer or float. Output: the number of kilograms, as a float, suitably labeled. """ convert.py Start with the prefatory docstring, not as an afterthought!!!

  8. Code as the convert Script pounds = float(input('Enter the number of pounds: ')) kilograms = pounds / 2.2 print('The number of kilograms is', kilograms) convert.py The Python shell Test the program in IDLE first!

  9. Test with Several Inputs pounds = float(input('Enter the number of pounds: ')) kilograms = pounds / 2.2 print('The number of kilograms is', kilograms) convert.py The Python shell

  10. Then Test in a Terminal Window pounds = float(input('Enter the number of pounds: ')) kilograms = pounds / 2.2 print('The number of kilograms is', kilograms) convert.py The terminal

  11. For Monday Start Chapter 3

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