KwickClips Java · 42 sec · free
Is one successful run enough?
Short answer. No. Test normal, boundary and invalid inputs.
What should the program print for 0?
INVALID INPUT.
Niven number tests
| Input | Expect |
|---|---|
| 18 | NIVEN |
| 19 | NOT NIVEN |
| 0 | INVALID INPUT |
Remember
| Normal, boundary, invalid |
| Expected answer first |
It worked for one input. Is it really correct? Test three kinds. Eighteen passes. Nineteen fails. Zero is invalid. Work out each answer by hand first. Test normal, boundary and invalid inputs. Know the answer first.
This clip is from the full lesson: From Algorithm to Java Program — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: ISC Class 11 Computer Science (868), ISC Class 11 Computer Science (868), ISC Class 12 Computer Science (868), ISC Class 12 Computer Science (868)
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