Jakub Jahic

public List<Person> getAllAdultsImperative(List<Person> people) {
    List<Person> adults = new ArrayList<>();
    for (Person person : people) {
        if (person.getAge() >= 18) {
            adults.add(person);
        }
    }
    return adults;
}

public List<Person> getAllAdultsFunctional(List<Person> people) {
    return people.stream().filter(person -> person.getAge() >= 18).toList();
}

• Generické typy 🔠 
• Stream API 🌊 
• Function a Lambda výrazy 💡 
• map, filter, reduce, flatMap 🔍