Scala TreeSet copyToArray()用法及代码示例

在 Scala TreeSet class，copyToArray()方法用于将TreeSet的元素复制到Array中。

函数定义: def copyToArray[B >: A](xs: Array[B], start: Int, len: Int): Int

参数:
xs: It denotes the array where elements are copied.
start: It denotes the starting index for the copy to takes place. Its default value is 0.
len: It denotes the number of elements to copy. Its default value is the length of the set.

返回类型: It returns the elements of the set to an array.

范例1：

// Scala program of copyToArray()  
// method  
  
// Import TreeSet 
import scala.collection.mutable._
  
// Creating object  
object GfG  
{  
  
    // Main method  
    def main(args:Array[String])  
    {  
      
        // Creating TreeSet 
        val t1 = TreeSet(2, 1, 3, 4, 5)  
          
        // Print the TreeSet 
        println(t1)  
          
        // Creating an array  
        val arr = Array(0, 0, 0, 0, 0) 
          
        // Applying copyToArray() method   
        t1.copyToArray(arr) 
          
        // Displays output  
        println("Elements in the array: ") 
          
        for(elem <- arr)   
            print(elem + " ")  
          
    }  
}

输出：

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

范例2：

// Scala program of copyToArray()  
// method  
  
// Import TreeSet 
import scala.collection.mutable._
  
// Creating object  
object GfG  
{  
  
    // Main method  
    def main(args:Array[String])  
    {  
      
        // Creating TreeSet 
        val t1 = TreeSet(2, 1, 3, 4, 5)  
          
        // Print the TreeSet 
        println(t1)  
          
        // Creating an array  
        val arr = Array(0, 0, 0, 0, 0) 
          
        // Applying copyToArray() method   
        t1.copyToArray(arr, 1, 2) 
          
        // Displays output  
        println("Elements in the array: ") 
          
        for(elem <- arr)   
            print(elem + " ")  
          
    }  
}

输出：

TreeSet(1, 2, 3, 4, 5)
Elements in the array: 
0 1 2 0 0

相关用法

注：本文由纯净天空筛选整理自rupesh_rao大神的英文原创作品 Scala TreeSet copyToArray() method with example。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。