Scala Set count() method with example

Scala TreeSet count() method with example

Last Updated : 03 Nov, 2019

In Scala TreeSet class, the count() method is utilized to count the number of elements in the TreeSet that satisfies a given predicate.

Method Definition: def count(p: (A) => Boolean): Int

Return Type: It returns the count the number of elements in the TreeSet that satisfies a given predicate.

Example #1:

// Scala program of count()  
// method  
  
// Import TreeSet 
import scala.collection.mutable._
  
// Creating object  
object GfG  
{  
  
    // Main method  
    def main(args:Array[String])  
    {  
      
        // Creating TreeSet 
        val t1 = TreeSet(2, 1, 3, 4, 5)  
          
        // Print the TreeSet 
        println(t1)  
          
        // Applying count() method   
        val result = t1.count(x => {x % 2 == 0}) 
          
        // Display output  
        print("Number of even element in the TreeSet: " + result)  
           
    }  
}  

Output:

TreeSet(1, 2, 3, 4, 5)
Number of even element in the TreeSet: 2

Example #2:

// Scala program of count()  
// method  
  
// Import TreeSet 
import scala.collection.mutable._
  
// Creating object  
object GfG  
{  
  
    // Main method  
    def main(args:Array[String])  
    {  
      
        // Creating TreeSet 
        val t1 = TreeSet(2, 1, 3, 4, 5)  
          
        // Print the TreeSet 
        println(t1)  
          
        // Applying count() method   
        val result = t1.count(x => {x % 2 != 0}) 
          
        // Display output  
        print("Number of odd element in the TreeSet: " + result)  
           
    }  
}  

Output:

TreeSet(1, 2, 3, 4, 5)
Number of odd element in the TreeSet: 3

Scala Set count() method with example

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