Scala Set map() method with example

Last Updated : 18 Oct, 2019

The map() method is utilized to build a new set by applying a function to all elements of this set.

Method Definition: def map[B](f: (A) => B): immutable.Set[B]

Return Type: It returns a new set containing all the elements after applying the given function.

Example #1:

// Scala program of map()  
// method  
  
// Creating object  
object GfG  
{  
  
    // Main method  
    def main(args:Array[String])  
    {  
        // Creating a set  
        val s1 = Set(5, 1, 3, 2, 4)  
          
        // Applying map method  
        val result = s1.map(x => x*x) 
          
        // Display output 
        println(result) 
    }  
}  

Output:

Set(25, 1, 9, 16, 4)

Example #2:

// Scala program of map()  
// method  
  
// Creating object  
object GfG  
{  
  
    // Main method  
    def main(args:Array[String])  
    {  
        // Creating a set  
        val s1 = Set(5, 1, 3, 2, 4)  
          
        // Applying map method  
        val result = s1.map(x => x/2) 
          
        // Display output 
        println(result) 
    }  
}  