FAQ: Errors - Run-time Errors

This community-built FAQ covers the “Run-time Errors” exercise from the lesson “Errors”.

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FAQs on the exercise Run-time Errors

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I got 0 when i ran the program. This feels wrong.

1 Like

Interesting to know that when the width and length are defined as integers, the ratio (regardless of how it’s defined) will also be an integer.

To give a more accurate ratio, all of them should be defined as float / double.

2 Likes
  1. The clues were already given in the type of possible errors.
  2. If you note the actual program instruction you would notice that the programmer forgot the actual dimensions and input the wrong dimension in the program.
  3. By instinct many of us tried to change the type of input from int to float/double. It would be necessary only if there are fractions that would make the calculations relevant. For this particular program float/double is not necessary.

Your point #2 about wrong dimensions is correct. But as noted by @ array7807995251 and @ arcwhiz72232, if we don’t change the type from int to double, then the result isn’t quite correct. 20 divided by 30 clearly isn’t equal to 0. If we leave both inputs as type int, then integer division will be carried out and the fraction part will be thrown away which is not quite the desired behavior.