Scala Set foreach() method with example

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 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:

21
9
12
7
3

Example #2:

// 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