KwickClips Java · 41 sec · free
Why did my loop add only once?
Short answer. A semicolon after for(...) made the body empty, so the block below ran once.
What is the other classic loop bug?
Forgetting to update the counter, which makes the loop run forever.
Remember
| No ; after for( ) |
| Always update the counter |
This loop should add three times. It adds once. Why? The semicolon ends the loop with an empty body. The block runs only once. Remove the semicolon. Remember. No semicolon after for. Always update the counter.
This clip is from the full lesson: Loops in Java: for, while and do-while — 6 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: ICSE Class 9 Computer Applications, ICSE Class 9 Computer Applications, ICSE Class 9 Computer Applications, ISC Class 11 Computer Science (868)
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