Can you list the main methods provided by the Stream API in Java?

The main methods of the Stream API in Java include:

• filter(Predicate) — filters elements based on a condition.
• map(Function) — transforms elements.
• flatMap(Function) — transforms and "flattens" nested structures.
• sorted() and sorted(Comparator) — sort elements.
• distinct() — removes duplicates.
• limit(long) — limits the number of elements.
• skip(long) — skips the first N elements.
• forEach(Consumer) — performs an action for each element.
• collect(Collector) — collects elements into a collection or other result.
• reduce(BinaryOperator) — reduces elements to a single value.
• count() — returns the number of elements.
• anyMatch(Predicate), allMatch(Predicate), noneMatch(Predicate) — check conditions for elements.

Example usage:

List<String> names = Arrays.asList("Anna", "Bob", "Charlie", "David");
List<String> filtered = names.stream()
    .filter(name -> name.startsWith("A"))
    .map(String::toUpperCase)
    .collect(Collectors.toList());

System.out.println(filtered); // [ANNA]