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Common Mistakes To Avoid

Explore common mistakes made when using ArrayLists in Java to help you write error-free code. Understand errors like missing imports, incorrect removal during loops, and type mismatches. This lesson helps you confidently handle ArrayLists for your AP Computer Science exam and real coding projects.

We'll cover the following...

❌ Common pitfalls

The following common mistakes should be avoided:

  • Not importing an ArrayList library before using it

  • Removing the elements ...