在 Scala Stack class
,则使用foreach()方法将给定函数应用于堆栈的所有元素。
函数定义: def foreach[U](f: (A) => U): Unit
返回类型: It returns all the elements of the stack after applying the given function to each of them.
范例1:
// Scala program of foreach()
// method
// Import Stack
import scala.collection.mutable._
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Creating stack
val s1 = Stack(6, 2, 3, 4, 5)
// Applying foreach method to print the stack
print("Elements in the stack: ")
s1.foreach(x => print(x + " "))
}
}
输出:
Elements in the stack: 6 2 3 4 5
范例2:
// Scala program of foreach()
// method
// Import Stack
import scala.collection.mutable._
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Creating stack
val s1 = Stack(6, 2, 3, 4, 5)
// Print the stack
println(s1)
// Applying foreach method
s1.foreach(x => println(x + " times " + x +" = " + x*x))
}
}
输出:
Stack(6, 2, 3, 4, 5) 6 times 6 = 36 2 times 2 = 4 3 times 3 = 9 4 times 4 = 16 5 times 5 = 25
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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 foreach() 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。