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object FirstClassFunction{
  def main(args: Array[String]){
    val add = (x: Int) => {
      val _add = (y: Int) =>  y + 5
      _add(x)
    }

    printf("add=%s \n", add(1))
    printf("add=%s \n", add(2))
    printf("add=%s \n", add(1))

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public class User {

    private final long id;

    private final String firstname;

    private final String lastname;

    public User(long id, String firstname, String lastname) {
        this.id = id;

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public class Car {

    public static void main(String[] args) {
        final Car car = new Car("blue");
        car.run();
    }

    private static void output(String message) {
        System.out.println(message);
    }

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object Literal {
  def main(args: Array[String]){
    // 整数リテラル
    // 10進数
    val dec = 24
    println("dec:" + dec)

    // 16進数
    val hex = 0x24
    println("hex:" + hex)

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object CaseClassTuple {

  def get() = {
    val name = new Name("清美", "椿山")
    (Human(name, 15), name)
  }

  def main(args: Array[String]){
    val tuple = get()
    printf("fullname_1=%s \n", tuple._1.name.fullname)

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scala> val numbers = Set(1, 2, 3)
numbers: scala.collection.immutable.Set[Int] = Set(1, 2, 3)

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trait Job {
  def getName() {
    "student"
  }
}

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scala> Seq(1, 2, 3).foreach(print(_))
123

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scala> Seq(1, 2, 3)(2)
res0: Int = 3

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object Option1 {

  def main(args: Array[String]): Unit = {
    val map = Map(1 -> "Moses", 2 -> "Lucas", 3 -> "Henderson")

    def check(o: Option[String]) {
      o match {
        case Some(s) => println(s)
        case None => println("Not exist.")
      }