Master Apex Collections: Lists, Sets, and Maps the Right Way

Learn how to write cleaner, faster, bulk-safe Apex code.

Author

Jonathan Morris
November 20, 2025

Hi ,

If you’ve written even a few lines of Apex, you’ve already used collections: Lists, Sets, and Maps.
But knowing when and how to use them is what separates good code from great code.

In this week’s post, we break down how to think like a pro when working with collections. You’ll also find practical examples and best practices that’ll make your code more scalable and governor-limit safe.

✅ Use Lists when order matters.
✅ Use Sets to prevent duplicates.
✅ Use Maps for lightning-fast lookups.
✅ Combine them for real power.

Read the full guide → Master Apex Collections

And if you’re ready for a deeper, structured way to learn Apex and SOQL, now’s a good time:
We’re currently running a limited-time sale for existing Forcecode users.
Use code XTYPHVR6 at checkout.

Keep building,

Jonathan
Founder, Forcecode