Scala Set +() method with example

The +() method is utilized to create a new set with an additional element unless the element is already present.

Method Definition: def +(elem: A): Set[A]

Return Type: It returns a new set with an additional element unless the element is already present.

Example #1:

// Scala program of +()
// method

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {
        // Creating a set
        val s1 = Set(1, 2, 3, 4, 6, 7)

        // Applying +() method
        val result = s1.+(5)

        // Display output
        print(result)
    }
}

Output:

Set(5, 1, 6, 2, 7, 3, 4)

Example #2:

// Scala program of +()
// method

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {
        // Creating a set
        val s1 = Set(41, 12, 23, 43, 1, 72)

        // Applying +() method
        val result = s1.+(100)

        // Display output
        print(result)
    }
}

Output:

Set(1, 41, 12, 72, 43, 23, 100)