Scala Map tail() 方法与示例

tail()方法用于显示地图的所有元素，除了第一个元素。

Method Definition: def tail: Map[A, B]

Return Type: It returns all the elements of the stated map except the first one.

示例 #1：

// Scala program of tail()
// method
  
// Creating object
object GfG
{ 
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating a map
        val m1 = Map(3 -> "geeks", 4 -> "for", 2 -> "cs")
          
        // Applying tail method
        val result = m1.tail
          
        // Displays output
        println(result)
      
    }
}

输出：

Map(4 -> for, 2 -> cs)

示例 #2：

// Scala program of tail()
// method
  
// Creating object
object GfG
{ 
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating a map
        val m1 = Map(3 -> "geeks", 4 -> "for", 3 -> "geeks")
          
        // Applying tail method
        val result = m1.tail
          
        // Displays output
        println(result)
      
    }
}

输出：

Map(4 -> for)