带有示例的 Scala Queue size() 方法
size()方法用于返回队列中存在的元素数。
Method Definition: def size: Int
Return Type: It returns the number of elements present in the queue.
示例 #1:
// Scala program of size()
// method
// Import Queue
import scala.collection.mutable._
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Creating a queue
val q1 = Queue(5, 2, 3, 7, 1)
// Print the queue
println(q1)
// Applying size method
val result = q1.size
// Display output
print("Number of elements in the queue: " + result)
}
}
输出:
Queue(5, 2, 3, 7, 1)
Number of elements in the queue: 5
示例 #2:
// Scala program of size()
// method
// Import Queue
import scala.collection.mutable._
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Creating a queue
val q1 = Queue("a", "e", "i", "o", "u")
// Print the queue
println(q1)
// Applying size method
val result = q1.size
// Display output
print("Number of elements in the queue: " + result)
}
}
输出:
Queue(a, e, i, o, u)
Number of elements in the queue: 5