Counting items in a list after filter is applied

suggest change

// Java:
long count = items.stream().filter( item -> item.startsWith("t")).count();

// Kotlin:
val count = items.filter { it.startsWith('t') }.size
// but better to not filter, but count with a predicate
val count = items.count { it.startsWith('t') }

Found a mistake? Have a question or improvement idea? Let me know.

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