Scala Stack copyToArray()用法及代码示例

在 Scala Stack class，copyToArray()方法用于将堆栈的元素复制到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 stack to an array.

范例1：

// Scala program of copyToArray()  
// method  
  
// Import Stack  
import scala.collection.mutable._
  
// Creating object  
object GfG  
{  
  
    // Main method  
    def main(args:Array[String])  
    {  
      
        // Creating a stack  
        val s1 = Stack(1, 2, 3)  
          
        // Print the stack  
        println(s1)  
          
        // Creating an array  
        val arr: Array[Int] = Array(0, 0, 0, 0, 0)   
          
        // Applying copyToArray method  
        s1.copyToArray(arr)  
          
        // Displays output  
        println("Elements in the array: ") 
          
        for(elem <- arr)   
            print(elem + " ") 
    }  
}

输出：

Stack(1, 2, 3)
Elements in the array: 
1 2 3 0 0

范例2：

// Scala program of copyToArray()  
// method  
  
// Import Stack  
import scala.collection.mutable._
  
// Creating object  
object GfG  
{  
  
    // Main method  
    def main(args:Array[String])  
    {  
      
        // Creating a stack  
        val s1 = Stack(1, 2, 3)  
          
        // Print the stack  
        println(s1)  
          
        // Creating an array  
        val arr: Array[Int] = Array(0, 0, 0, 0, 0)   
          
        // Applying copyToArray method  
        s1.copyToArray(arr, 1, 2)  
          
        // Displays output  
        println("Elements in the array: ") 
          
        for(elem <- arr)   
            print(elem + " ") 
    }  
}

输出：

Stack(1, 2, 3)
Elements in the array: 
0 1 2 0 0

堆栈类，div>

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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 Stack 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。