7 Common Mistakes In Java Streams

Cleopatra Douglas

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Oct 21, 2024

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Working with Java Streams, these are some common mistakes:

1. Not Using Terminal Operations:
   Mistake: Forgetting to call a terminal operation like collect(), forEach(), or reduce(), this leads to no execution.

Solution: Always end with a terminal operation to trigger the stream processing.

2. Modifying Source Data:
Mistake: Changing the data structure (like a List) while processing it in a stream can lead to unknown results.

Solution: Don’t modify the source data during stream operations, instead use streams to create new collections.