How can I optimize the performance of Java collections?

How can I optimize the performance of Java collections?

To optimize Java collections, consider using the right collection type for your needs, like ArrayList for fast access or HashMap for quick lookups.

What are the differences between ArrayList and LinkedList?

ArrayList provides faster random access due to its underlying array structure, while LinkedList offers better performance for insertions and deletions.

When should I use HashMap over TreeMap?

Use HashMap for faster access and insertion times, while TreeMap is better for sorted order and range queries.

Are there any specific performance tips for large datasets?

For large datasets, consider using parallel streams for processing, and avoid unnecessary copying of collections.