在 Scala Stack class
,则使用take()方法返回由堆栈的前n个元素组成的堆栈。
函数定义: def take(n: Int): Stack[A]
返回类型: It returns a stack consisting of the first ‘n’ elements of the stack.
范例1:
// Scala program of take()
// 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)
// Print the stack
println(s1)
// Applying take method
val result = s1.take(2)
// Display output
print("Stack containing first two elements: " + result)
}
}
输出:
Stack(1, 2, 3, 4) Stack containing first two elements: Stack(1, 2)
范例2:
// Scala program of take()
// 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)
// Print the stack
println(s1)
// Applying take method
val result = s1.take(3)
// Display output
print("Stack containing first three elements: " + result)
}
}
输出:
Stack(1, 2, 3, 4) Stack containing first three elements: Stack(1, 2, 3)
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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 take() 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。