DO IT NOW
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DO IT NOW i = 1 total = 0 REPEAT total = total + round(i) i = i + 1 UNTIL i=10 The array can contain up to 10 rounds. Why does the until loop only run 9 times? Why does the program run even if I have not completed the quiz? What kind of error is this? How do I correct the error?
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DO IT NOW. The array can contain up to 10 rounds. Why does the until loop only run 9 times? Why does the program run even if I have not completed the quiz? What kind of error is this? How do I correct the error?. i = 1 total = 0 REPEAT total = total + round(i) i = i + 1 UNTIL i =10. - PowerPoint PPT Presentation
Transcript of DO IT NOW
DO IT NOW
i = 1total = 0REPEAT
total = total + round(i)i = i + 1
UNTIL i=10
The array can contain up to 10 rounds.
Why does the until loop only run 9 times?
Why does the program run even if I have not completed the quiz?
What kind of error is this?
How do I correct the error?
DO IT NOWWhy does the until loop only run 9 times? Because i will equal 10 at the end of the 9th time it loops, which will mean the program will stop before it gets the chance to run 10 times.
Why does the program run even if I have not completed the quiz? Because there is no clause to tell it to stop if round(i)=0
What kind of error is this? Logic error , as the program runs but does not do what the programmer intended
How do I correct the error? Change the last line of code to UINTIL i>10 or round(i)=0
Prepare for the mid term exam
LEARNING AIM
1. Identify three areas that you need to revise for the exam
2. Watch revision videos for the areas you have identified
3. Complete the tests after each video to test your understanding
LEARNING OBJECTIVES
CAMBRIDGEGCSECOMPUTING.ORG
Start by selecting COURSE from the tabs
We have covered the following sections:
1. Computing Hardware2. Representation of data in computer systems3. Programming (apart from the section on machine code)
CAMBRIDGEGCSECOMPUTING.ORG
Once you have identified the relevant section, find the video(s) you need to
watch – complete the test section after each video
If you complete any on the worksheets print them off and
bring them to me for marking
LEARNING OUTCOMES
ALL(C)
Demonstrate an improvement in your understanding through the completion of tests after watching each video.
MOST(B)
Go back over the end of term exam papers and identify where you went wrong – using the videos and tests to assist you
SOME(A)
Write full answers for questions that you previously got part marks on – using the videos and tests to assist you
By the end of this lesson you will be able to ....
