Scala Set subsetOf() 方法与示例
subsetOf()方法用于测试一个集合是否是另一个集合的子集。
Method Definition: def subsetOf(that: Set[A]): Boolean
Return Type: It returns true if a set is subset of another set else it returns false.
示例 #1:
// Scala program of subsetOf()
// method
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Creating a set
val s1 = Set(4, 12, 2, 31)
val s2 = Set(4, 12)
// Applying subsetOf method
val result = s2.subsetOf(s1)
// Display output
println(result)
}
}
输出:
true
示例 #2:
// Scala program of subsetOf()
// method
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Creating a set
val s1 = Set(4, 12, 2, 31)
val s2 = Set(4, 12)
// Applying subsetOf method
val result = s1.subsetOf(s2)
// Display output
println(result)
}
}
输出:
false