KwickClips C · 41 sec · free
Which loops are entry controlled?
Short answer. while and for.
Which is exit controlled?
do-while.
Three loops
| Loop | Checks | Min runs |
|---|---|---|
| while | before | 0 |
| for | before | 0 |
| do-while | after | 1 |
Remember
| while, for: entry controlled |
| do-while: exit controlled |
The condition is false from the start. Which loop still runs? While checks first, so it may run zero times. For also checks first. Do while checks after, so it runs once. While and for are entry controlled. Do while is exit controlled.
This clip is from the full lesson: Loops in C: while, do-while and for — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 9 Information Technology (402), GSEB Std 10 Computer Studies
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