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May 15, 2024 10:54
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using ConsoleAppLinqAggregateBy.Models; | |
using System.Runtime.InteropServices; | |
Console.WriteLine("***** Testes com .NET 9 | Metodo AggregateBy - LINQ *****"); | |
Console.WriteLine($"Versao do .NET em uso: {RuntimeInformation | |
.FrameworkDescription} - Ambiente: {Environment.MachineName} - Kernel: {Environment | |
.OSVersion.VersionString}"); | |
var estados = new Estado[] | |
{ | |
new("AC", "Acre", "Norte", 881935), | |
new("AL", "Alagoas", "Nordeste", 3337357), | |
new("AP", "Amapa", "Norte", 845731), | |
new("AM", "Amazonas", "Norte", 4144597), | |
new("BA", "Bahia", "Nordeste", 14930634), | |
new("CE", "Ceara", "Nordeste", 9187103), | |
new("DF", "Distrito Federal", "Centro-Oeste", 3015268), | |
new("ES", "Espirito Santo", "Sudeste", 4064052), | |
new("GO", "Goias", "Centro-Oeste", 7142070), | |
new("MA", "Maranhao", "Nordeste", 7075181), | |
new("MT", "Mato Grosso", "Centro-Oeste", 3526220), | |
new("MS", "Mato Grosso do Sul", "Centro-Oeste", 2809394), | |
new("MG", "Minas Gerais", "Sudeste", 21168791), | |
new("PA", "Para", "Norte", 8690745), | |
new("PB", "Paraiba", "Nordeste", 4039277), | |
new("PR", "Parana", "Sul", 11516840), | |
new("PE", "Pernambuco", "Nordeste", 9557071), | |
new("PI", "Piaui", "Nordeste", 3273227), | |
new("RJ", "Rio de Janeiro", "Sudeste", 17366189), | |
new("RN", "Rio Grande do Norte", "Nordeste", 3534165), | |
new("RS", "Rio Grande do Sul", "Sul", 11422973), | |
new("RO", "Rondonia", "Norte", 1796460), | |
new("RR", "Roraima", "Norte", 605761), | |
new("SC", "Santa Catarina", "Sul", 7252502), | |
new("SP", "Sao Paulo", "Sudeste", 46289333), | |
new("SE", "Sergipe", "Nordeste", 2318822), | |
new("TO", "Tocantins", "Norte", 1590248) | |
}; | |
Console.WriteLine(); | |
Console.WriteLine("Populacao estimada por regioes brasileiras:"); | |
var populacaoPorRegiao = estados.AggregateBy( | |
keySelector: estado => estado.Regiao!, | |
seed: 0, | |
(totalPopulacao, estado) => totalPopulacao + estado.Populacao | |
); | |
foreach (var (regiao, totalPopulacao) in populacaoPorRegiao) | |
Console.WriteLine($" Regiao: {regiao} - Populacao total: {totalPopulacao}"); |
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