j5ik2o

package domain

import java.time.temporal.ChronoUnit
import java.time.{DayOfWeek, LocalDate, LocalDateTime}

import enumeratum._

sealed trait Age extends Ordered[Age] {
  def breachEncapsulationOfValue(today: LocalDate): Int

j5ik2o

入力されたリストの要素を2倍し合計する関数

def loop(in: List[Int], acc: Int): Int =
  in match {
    case Nil => acc // 終了条件
    case head :: tail =>
      val result = head * 2 // headのタスク
      loop(tail, acc + result) // 残りのリストと計算途中を渡して処理を継続
 }

j5ik2o

public static boolean isNameHashUpperCase(String name) {
  boolean result = false;
  for (int i = 0; i < name.length; i++) {
    if (Character.isUpperCase(name.charAt(i)) {
      result = true;
      break;
    }
  }
 return result;

j5ik2o

object PersistentWalletAggregate {

  def behaviorProxy(
      id: WalletId,
      chargesLimit: Int = Int.MaxValue
  ): Behavior[CommandRequest] =
    Behaviors
      .supervise(Behaviors.setup[CommandRequest] { ctx =>
        val childRef: ActorRef[CommandRequest] =
          ctx.spawn(WalletAggregate.behavior(id, chargesLimit), WalletAggregate.name(id))

j5ik2o

object TestMain extends App {
  import akka.stream.scaladsl._
  import akka.actor._
  import akka.stream.ActorMaterializer
  import scala.concurrent._
  import scala.concurrent.duration._

  implicit val system = ActorSystem()
  implicit val ec     = system.dispatcher
  implicit val mat    = ActorMaterializer()

j5ik2o

curl -v -X GET https://oss.sonatype.org/content/repositories/releases/com/github/j5ik2o/reactive-redis-core_2.12/1.0.20/reactive-redis-core_2.12-1.0.20.pom                        INT(-2) ↵  3243  22:31:44
Note: Unnecessary use of -X or --request, GET is already inferred.
*   Trying 23.22.160.79...
* TCP_NODELAY set
* Connected to oss.sonatype.org (23.22.160.79) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH
* successfully set certificate verify locations:

j5ik2o

package btree

package btree

type Node interface {
	Size() int
	Sum() int64
	Min() int64
	Max() int64
	Find(value int64) *int64

j5ik2o

trait BTree {
    fn size(&self) -> i32;
    fn sum(&self) -> i64;
    fn min(&self) -> i64;
    fn max(&self) -> i64;
    fn find(&self, value: i64) -> Option<i64>;
}

enum Node {
    Leaf {

j5ik2o

// 絵の具を表すオブジェクト(副作用が伴う可変オブジェクト)
public class Paint {
    private int volume;
    private PigmentColor pigmentColor;
    // getter, setter 省略

    public Paint(PigmentColor pigmentColor, int volume) {
        this.volume = volume;
        this.pigmentColor = pigmentColor;
    }

j5ik2o

case class Money(amount: BigDecimal, 
                 currency: Currency) {

  def plus(other: Money): Money = {
    require(currency == other.currency)
    new Money(amount = amount.add(other.amount), currency)
  }

}