Scala Map toSet() 方法与示例

toSet()方法用于显示来自 Scala 映射的集合。

Method Definition: def toSet: Set[A]

Return Type: It returns a set from the stated map.

示例 #1：

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

输出：

Set((3, geeks), (4, for))

示例 #2：

// Scala program of toSet()
// 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 toSet method
        val result = m1.toSet
          
        // Displays output
        println(result)
          
    }
}

输出：

Set((3, geeks), (4, for), (2, cs))