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L Reduce.md

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L Reduce.md

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Data Set

   List<Footballer> getFootballers() {
        return List.of(
                new Footballer("Messi", 32, Gender.MALE, List.of("CF","CAM", "RF")),
                new Footballer("Ibrahim", 28, Gender.MALE, List.of("CF", "CAM", "LF")),
                new Footballer("Arthur", 23, Gender.MALE, List.of("CM", "CAM")),
                new Footballer("Cristiano Ronaldo", 27, Gender.MALE, List.of("GK")),
                new Footballer("Surinder", 20, Gender.MALE, List.of("CM", "CDM")),
                new Footballer("Jennifer", 29, Gender.FEMALE, List.of("CF", "CAM")),
                new Footballer("Jana", 17, Gender.FEMALE, List.of("CB")),
                new Footballer("Alexia", 25, Gender.FEMALE, List.of("CAM", "RF", "LF"))
        );
    }

Reduce:

        Optional<String> longestName = footballerList.stream()
                .map(Footballer::getName)
                .reduce((name1, name2)
                        -> name1.length() > name2.length()
                        ? name1 : name2);

        longestName.ifPresent(System.out::println);
        //prints Cristiano Ronaldo
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