Spring Boot - Async Processing
You want to schedule a Spring Boot task to run every Monday at 8:00 AM and every Friday at 8:00 AM using a single cron expression. Which expression achieves this?
You want to schedule a Spring Boot task to run every Monday at 8:00 AM and every Friday at 8:00 AM using a single cron expression. Which expression achieves this?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Understand cron for multiple days
A single cron expression can schedule the same time on multiple days using comma-separated day-of-week values like MON,FRI.Step 2: Analyze options
0 0 8 ? * MON,FRI "0 0 8 ? * MON,FRI" correctly runs at 8:00 AM every Monday and Friday. Other options have invalid syntax.Final Answer:
0 0 8 ? * MON,FRI -> Option AQuick Check:
Multiple days can be comma-separated, but times must be same [OK]
Quick Trick: One cron expression = one time, multiple days allowed [OK]
Common Mistakes:
- Trying to schedule different times in one expression
- Using commas incorrectly in time fields
- Assuming cron supports multiple schedules in one
Master "Async Processing" in Spring Boot
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