带有示例的 Scala 迭代器 filterNot() 方法

filterNot()方法属于AbstractIterator类的具体值成员。它在Iterator和IterableOnceOps类中定义。它选择所述迭代器的所有不满足给定谓词的元素。

Method Definition : def filterNot(p: (A) => Boolean): Iterator[A]

Return Type : It returns a new iterator containing all the elements of the stated iterator that do not satisfies the given predicate p.

示例 #1：

// Scala program of filterNot()
// method
  
// Creating object
object GfG
{ 
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating an Iterator 
        val iter = Iterator(3, 9, 5, 1, 13)
          
        // Applying filterNot method
        val x = iter.filterNot(x => {x % 3 != 0})
          
        // Applying next method
        val result = x.next()
          
        // Displays output
        println(result)
      
    }
}

输出：

3

示例 #2：

// Scala program of filterNot()
// method
  
// Creating object
object GfG
{ 
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating an Iterator 
        val iter = Iterator(2, 4, 5, 1, 13)
          
        // Applying filterNot method
        val x = iter.filterNot(x => {x % 2 == 0})
          
        // Applying next method
        val result = x.next()
          
        // Displays output
        println(result)
      
    }
}

输出：

5