public class Person {

    private String name; 
    private LocalDate birthday; 
    private String studying; 
    private boolean isCertified;
    private List<String> certifications = new ArrayList<>();
    
    // getters and setters
   
}

public class Presentation {   
    
    public static void main(String[] args) {
        Person felipeBrandao = new Person();
        
        felipeBrandao.setName("Felipe Brandão");
        felipeBrandao.setBirthday(LocalDate.of(1997, 09, 03));
        felipeBrandao.setStudying("Análise e Desenvolvimento de Sistemas");
        felipeBrandao.setCertified(true);
        felipeBrandao.getCertifications().add("Oracle Certified Associate, Java SE 8 Programmer");
        
        System.out.print("Seja bem-vindo(a) ao meu perfil!!");
    }
    
}