কোটলিন

fun main() {
  val user = mutableMapOf(
    "নাম" to "মোঃ আরিফ",
    "দেশ" to "বাংলাদেশ"
  )

  val result = user.containsKey("নাম")

  println(result)
}

fun main() {
  val user = mutableMapOf(
    "নাম" to "মোঃ আরিফ",
    "দেশ" to "বাংলাদেশ"
  )

  val result = user.containsValue("বাংলাদেশ")

  println(result)
}

fun main() {
  val user = mutableMapOf(
    "নাম" to "মোঃ আরিফ",
    "দেশ" to "বাংলাদেশ"
  )

  val result = user.get("নাম")

  println(result)
}

fun main() {
  val user = mutableMapOf(
    "নাম" to "মোঃ আরিফ",
    "দেশ" to "বাংলাদেশ"
  )

  user.put("শহর", "ঢাকা")

  println(user)
}

fun main() {
  val user = mutableMapOf(
    "নাম" to "মোঃ আরিফ",
    "দেশ" to "বাংলাদেশ"
  )

  val info = mapOf(
    "শহর" to "ঢাকা"
  )

  user.putAll(info)

  println(user)
}

fun main() {
  val user = mutableMapOf(
    "নাম" to "মোঃ আরিফ",
    "দেশ" to "বাংলাদেশ"
  )

  val result = user.remove("নাম")

  println(user)
}

fun main() {
  val user = mutableMapOf(
    "নাম" to "মোঃ আরিফ",
    "দেশ" to "বাংলাদেশ"
  )

  user.clear()

  println(user)
}

fun main() {
  val user = mutableMapOf(
    "নাম" to "মোঃ আরিফ",
    "দেশ" to "বাংলাদেশ"
  )

  val result = user.keys

  println(result)
}

fun main() {
  val user = mutableMapOf(
    "নাম" to "মোঃ আরিফ",
    "দেশ" to "বাংলাদেশ"
  )

  val result = user.values

  println(result)
}

fun main() {
  val user = mutableMapOf(
    "নাম" to "মোঃ আরিফ",
    "দেশ" to "বাংলাদেশ"
  )

  val result = user.entries

  println(result)
}

fun main() {
  val user = mutableMapOf(
    "নাম" to "মোঃ আরিফ",
    "দেশ" to "বাংলাদেশ"
  )

  val result = user.replace(
    "নাম",
    "আরিফ"
  )

  println(user)
}

fun main() {
  val user = mapOf(
    "নাম" to "মোঃ আরিফ",
    "দেশ" to "বাংলাদেশ"
  )

  val info = mapOf(
    "নাম" to "মোঃ আরিফ",
    "দেশ" to "বাংলাদেশ"
  )

  val result = user == info

  println(result)
}