Scala Set foreach() method with example

Scala Set foreach() method with example

Last Updated : 18 Oct, 2019

The foreach() method is utilized to apply the given function to all the elements of the set.

Method Definition: def foreach(f: (A) => Unit): Unit Return Type: It returns all the elements of the set after applying the given function to each of them.

Example #1:

Scala

// Scala program of foreach() 
// method 

// Creating object 
object GfG 
{ 

    // Main method 
    def main(args:Array[String]) 
    { 
        // Creating a set 
        val s1 = Set(3, 7, 12, 9, 21) 
        
        // Applying foreach method 
        s1.foreach(x => println(x)) 
    
    } 
}

Output:

Example #2:

Scala

// Scala program of foreach() 
// method 

// Creating object 
object GfG 
{ 

    // Main method 
    def main(args:Array[String]) 
    { 
        // Creating a set 
        val s1 = Set(1, 2, 3, 4, 5) 
        
        // Applying foreach method 
        s1.foreach(x => println(x + " times " + x + " = " + x*x)) 
    
    } 
}

Output:

5 times 5 = 25
1 times 1 = 1
2 times 2 = 4
3 times 3 = 9
4 times 4 = 16

Scala Set foreach() method with example

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