Spring Boot - Async Processing
You want to schedule a Spring Boot task to run every Monday at 8:30 AM, but only during the months of June, July, and August. Which cron expression correctly achieves this?
You want to schedule a Spring Boot task to run every Monday at 8:30 AM, but only during the months of June, July, and August. Which cron expression correctly achieves this?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand cron fields needed
Seconds=0, Minutes=30, Hours=8, Day=? (no specific day), Month=6,7,8 (June-Aug), Weekday=MON (Monday)Step 2: Check options for correct syntax
"0 30 8 ? 6,7,8 MON" uses '?' for day, lists months as 6,7,8, and weekday as MON, which is correct.Final Answer:
"0 30 8 ? 6,7,8 MON" -> Option AQuick Check:
Use '?' for day, list months, specify MON weekday [OK]
Quick Trick: Use '?' for day when specifying weekday, list months with commas [OK]
Common Mistakes:
- Using '*' for day and weekday together
- Using range '-' instead of commas for months
- Using numeric weekday instead of MON
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