Scala Stack toMap() 方法与示例

在 Scala Stack class中， toMap()方法用于返回由堆栈的所有元素组成的映射。

Method Definition: def toMap[T, U]: Map[T, U]

Return Type: It returns a map consisting of all the elements of the stack.

示例 #1：

// Scala program of toMap() 
// method 
  
// Import Stack 
import scala.collection.mutable._
  
// Creating object 
object GfG 
{ 
  
    // Main method 
    def main(args:Array[String]) 
    { 
      
        // Creating stack
        val s1 = Stack((1, 2), (3, 4), (5, 6)) 
          
        // Print the stack 
        println(s1) 
           
        // Applying toMap method  
        val result = s1.toMap
          
        // Display output 
        print("Elements in the map: " + result) 
          
    } 
} 

输出：

Stack((1, 2), (3, 4), (5, 6))
Elements in the map: Map(1 -> 2, 3 -> 4, 5 -> 6)

示例 #2：

// Scala program of toMap() 
// method 
  
// Import Stack 
import scala.collection.mutable._
  
// Creating object 
object GfG 
{ 
  
    // Main method 
    def main(args:Array[String]) 
    { 
      
        // Creating stack
        val s1 = Stack((5, 2), (13, 7), (1, 3)) 
          
        // Print the stack 
        println(s1) 
           
        // Applying toMap method  
        val result = s1.toMap
          
        // Display output 
        print("Elements in the map: " + result) 
          
    } 
} 

输出：

Stack((5, 2), (13, 7), (1, 3))
Elements in the map: Map(5 -> 2, 13 -> 7, 1 -> 3)