Scala Set copyToArray()用法及代码示例

copyToArray()方法用于将集合的元素复制到数组。

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

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 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 
  
// Creating object  
object GfG  
{  
  
    // Main method  
    def main(args:Array[String])  
    {  
      
        // Creating sets  
        val s1 = Set(1, 2, 3) 
          
        val arr: Array[Int] = Array(0, 0, 0, 0, 0) 
          
        // Applying copyToArray method  
        s1.copyToArray(arr)  
          
        // Displays output  
        for(elem <- arr)   
        println(elem)  
      
    }  
}

输出：

范例2：

// Scala program of copyToArray() 
// method 
  
// Creating object  
object GfG  
{  
  
    // Main method  
    def main(args:Array[String])  
    {  
      
        // Creating sets  
        val s1 = Set(1, 2, 3) 
          
        val arr: Array[Int] = Array(0, 0, 0, 0, 0) 
          
        // Applying copyToArray method  
        s1.copyToArray(arr, 1, 2)  
          
        // Displays output  
        for(elem <- arr)   
        println(elem)  
      
    }  
}

输出：

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 Set 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。