Scala SortedSet isEmpty() 方法与示例
isEmpty()方法用于测试 SortedSet 是否为空。
Method Definition: def isEmpty: Boolean
Return Type: It returns true if the SortedSet is empty else it returns false.
示例 #1:
// Scala program of isEmpty()
// method
import scala.collection.immutable.SortedSet
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Creating a SortedSet
val s1 = SortedSet(1, 2, 3, 4, 5)
// Applying isEmpty method
val result = s1.isEmpty
// Display output
println(result)
}
}
输出:
false
示例 #2:
// Scala program of isEmpty()
// method
import scala.collection.immutable.SortedSet
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Creating a SortedSet
val s1 = SortedSet()
// Applying isEmpty method
val result = s1.isEmpty
// Display output
println(result)
}
}
输出:
true