在Scala中一成不变TreeSet class
,则使用contains()方法检查TreeSet中是否存在元素。
Method Definition: def contains(elem:A):Boolean
Return Type: It returns true if the element is present in the TreeSet or else it returns false.
范例1:
// Scala program of contains()
// method
// Import TreeSet
import scala.collection.immutable._
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Creating TreeSet
val t1 = TreeSet(41, 12, 23, 43, 1, 72)
// Print the TreeSet
println(t1)
// Applying contains() method
val result = t1.contains(10)
// Display output
print("TreeSet contains '10':" + result)
}
}
输出:
TreeSet(1, 12, 23, 41, 43, 72) TreeSet contains '10':false
范例2:
// Scala program of contains()
// method
// Import TreeSet
import scala.collection.immutable._
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Creating TreeSet
val t1 = TreeSet("g", "e", "e", "k", "s")
// Print the TreeSet
println(t1)
// Applying contains() method
val result = t1.contains("k")
// Display output
print("TreeSet contains 'k':" + result)
}
}
输出:
TreeSet(e, g, k, s) TreeSet contains 'k':true
相关用法
- Scala immutable TreeSet toString()用法及代码示例
- Scala immutable TreeSet toSeq()用法及代码示例
- Scala immutable TreeSet toMap()用法及代码示例
- Scala immutable TreeSet toList()用法及代码示例
- Scala immutable TreeSet toBuffer()用法及代码示例
- Scala immutable TreeSet toArray()用法及代码示例
- Scala immutable TreeSet sum()用法及代码示例
- Scala immutable TreeSet splitAt()用法及代码示例
- Scala immutable TreeSet take()用法及代码示例
- Scala immutable TreeSet takeRight()用法及代码示例
- Scala immutable TreeSet product()用法及代码示例
- Scala immutable TreeSet mkString()用法及代码示例
- Scala immutable TreeSet mkString()用法及代码示例
- Scala immutable TreeSet isEmpty()用法及代码示例
- Scala immutable TreeSet init()用法及代码示例
- Scala immutable TreeSet intersect()用法及代码示例
- Scala immutable TreeSet equals()用法及代码示例
- Scala immutable TreeSet exists()用法及代码示例
- Scala immutable TreeSet filter()用法及代码示例
- Scala immutable TreeSet find()用法及代码示例
注:本文由纯净天空筛选整理自Shivam_k大神的英文原创作品 Scala immutable TreeSet contains() method。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。