带有示例的 Scala Queue dropRight() 方法
dropRight()方法用于删除队列的最后“n”个元素。
Method Definition: def dropRight(n: Int): Queue[A]
Return Type: It returns a new queue that consists of all the elements except the last ‘n’ elements.
示例 #1:
// Scala program of dropRight()
// method
// Import Queue
import scala.collection.mutable._
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Creating queues
val q1 = Queue(1, 2, 3, 4, 5)
// Print the queue
println(q1)
// Applying dropRight method
val result = q1.dropRight(2)
// Displays output
print("Queue after dropRight(2) method: " + result)
}
}
输出:
Queue(1, 2, 3, 4, 5)
Queue after dropRight(2) method: Queue(1, 2, 3)
示例 #2:
// Scala program of dropRight()
// method
// Import Queue
import scala.collection.mutable._
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Creating queues
val q1 = Queue(1, 2, 3, 4, 5)
// Print the queue
println(q1)
// Applying dropRight method
val result = q1.dropRight(3)
// Displays output
print("Queue after dropRight(3) method: " + result)
}
}
输出:
Queue(1, 2, 3, 4, 5)
Queue after dropRight(3) method: Queue(1, 2)