ikedanaruki

def log(flag: Boolean)(op: String) {
  val writer = new java.io.PrintWriter(System.out)
  try {
    if(flag) writer.println(op)
    else writer.println("flag off")
  }
  finally {
    writer.close()
  }
}

ikedanaruki

def log(flag: Boolean)(op: () => String) {
  val writer = new java.io.PrintWriter(System.out)
  try {
    if(flag) writer.println(op)
    else writer.println("flag off")
  }
  finally {
    writer.close()
  }
}

ikedanaruki

def log(flag: Boolean)(op: => String) {
  val writer = new java.io.PrintWriter(System.out)
  try {
    if(flag) writer.println(op)
    else writer.println("flag off")
  }
  finally {
    writer.close()
  }
}

ikedanaruki

def log(op: => String) {
  val writer = new java.io.PrintWriter("log.txt")
  try {
    val result = op
    writer.println(result)
  }
  finally {
    writer.close()
  }
}

ikedanaruki

def log(op: () => String) {
  val writer = new java.io.PrintWriter("log.txt")
  try {
    val result = op()
    writer.println(result)
  }
  finally {
    writer.close()
  }
}

ikedanaruki

class Function implements Runnable {
  @Override
  public void run() {
    System.out.println("hello!");
  }
}

public class Main {

    public static void main(String[] args) {

ikedanaruki

class Rectangle3(val width: Int,height: Int) {
  println(s"2:width = $width height = $height")

  def this(size : Int) {
    this(size,size)
    println(s"Square width = height = $width")
  }

  def getArea: Int = {
    width * height

ikedanaruki

class Rectangle0 {
  val width: Int = 100
  val height: Int = 200
  println(s"1:width = $width height = $height")
}

class Rectangle1(val width: Int,height: Int) {
  println(s"2:width = $width height = $height")

  def this(size : Int) {

ikedanaruki

val states = Map(
        "1" -> "北海道",
        "2" -> "青森県",
        "3" -> "岩手県",
        "4" -> "宮城県",
        "5" -> "秋田県",
        "6" -> "山形県",
        "7" -> "福島県",
        "8" -> "茨城県",
        "9" -> "栃木県",

ikedanaruki

def log(op: () => String) {
  val writer = new java.io.PrintWriter("log.txt")
  try {
    val result = op()
    writer.println(result)
  }
  finally {
    writer.close()
  }
}