在Scala不可变的TreeSet类中,使用diff()方法查找两个TreeSet之间的差异。它从另一个TreeSet中删除一个TreeSet中存在的元素。
Method Definition: def diff[B >:A](that:collection.Seq[B]):TreeSet[A]
Return Type: It returns a new TreeSet which consists of elements after the difference between the two given TreeSet.
范例1:
// Scala program of diff()
// method
// Import TreeSet
import scala.collection.immutable._
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Creating TreeSet
val t1 = TreeSet(1, 2, 3, 4, 5)
val t2 = TreeSet(3, 4, 5)
// Print the TreeSet
println("TreeSet_1:" + t1)
println("TreeSet_2:" + t2)
// Applying diff method
val result = t1.diff(t2)
// Displays output
print("(TreeSet_1 - TreeSet_2):" + result)
}
}
输出:
TreeSet_1:TreeSet(1, 2, 3, 4, 5) TreeSet_2:TreeSet(3, 4, 5) (TreeSet_1 - TreeSet_2):TreeSet(1, 2)
范例2:
// Scala program of diff()
// method
// Import TreeSet
import scala.collection.immutable._
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Creating TreeSet
val t1 = TreeSet(1, 2, 3, 4, 5)
val t2 = TreeSet(3, 4, 5, 6, 7, 8)
// Print the TreeSet
println("TreeSet_1:" + t1)
println("TreeSet_2:" + t2)
// Applying diff method
val result = t2.diff(t1)
// Displays output
print("(TreeSet_2 - TreeSet_1):" + result)
}
}
输出:
TreeSet_1:TreeSet(1, 2, 3, 4, 5) TreeSet_2:TreeSet(3, 4, 5, 6, 7, 8) (TreeSet_2 - TreeSet_1):TreeSet(6, 7, 8)
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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 diff() 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。