Scala 不可变 TreeSet toArray() 方法

在 Scala 不可变 TreeSet 类中， toArray()用于返回由 TreeSet 的所有元素组成的数组。

Method Definition: def toArray: Array[A]

Return Type: It returns an array consisting of all the elements of the TreeSet.

示例 #1：

// Scala program of toArray() 
// method 
  
// Import TreeSet
import scala.collection.immutable._
  
// Creating object 
object GfG 
{ 
  
    // Main method 
    def main(args:Array[String]) 
    { 
      
        // Creating TreeSet
        val t1 = TreeSet(3, 1, 5, 2, 4)  
            
        // Print the TreeSet 
        println(t1) 
          
        // Applying toArray method  
        val result = t1.toArray
            
        // Display output 
        print("Elements in the array: ") 
            
        for(elem <- result) 
            print(elem + " ") 
              
    } 
} 

输出：

TreeSet(1, 2, 3, 4, 5)
Elements in the array: 1 2 3 4 5

示例 #2：

// Scala program of toArray() 
// method 
  
// Import TreeSet
import scala.collection.immutable._
  
// Creating object 
object GfG 
{ 
  
    // Main method 
    def main(args:Array[String]) 
    { 
      
        // Creating TreeSet
        val t1 = TreeSet("u", "a", "i", "o", "e") 
            
        // Print the TreeSet 
        println(t1) 
          
        // Applying toArray method  
        val result = t1.toArray
            
        // Display output 
        print("Elements in the array: ") 
            
        for(elem <- result) 
            print(elem + " ") 
              
    } 
} 

输出：

TreeSet(a, e, i, o, u)
Elements in the array: a e i o u