[Java snippet - 1 ] Filter an entry from a stream .flatMap vs .mapMulti in java

FilterEntryFromJavaStream.md

How to filter an entry from a stream in Java

1. Using .flatmap

List<Integer> numbers = listOfStrings.stream()
        .flatMap(s -> {
            try {
                return Stream.of(Integer.parseInt(s));
            } catch (Exception e) {
                return Stream.of();
            }
        }).toList();

2. Using .mapMulti introduced in java 16.

  List<Integer> numbers = listOfStrings.stream()
          .<Integer>mapMulti((s, consumer) -> {
              try {
                  consumer.accept(Integer.parseInt(s));
              } catch (Exception e) {
                //ignored
              }
          }).toList();

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