Scala List ::() operator with example

Scala List +() operator with example

Last Updated : 26 Jul, 2019

The +() operator in Scala is utilized to append an element to the list.

Method Definition: def +(elem: A): List[A] Return Type: It returns a list of the stated elements after appending it to an another element.

Example #1:

Scala

// Scala program of +()
// method

// Creating object
object GfG
{ 

    // Main method
    def main(args:Array[String])
    {
    
        // Creating a list
        val m1 = List(1, 2, 3)
        
        // Applying + operator
        val res = m1.+("10")
        
        // Displays output
        println(res)
    
    }
}

Output:

List(1, 2, 3)10

Example #2:

Scala

// Scala program of +()
// method

// Creating object
object GfG
{ 

    // Main method
    def main(args:Array[String])
    {
    
        // Creating a list
        val m1 = List()
        
        // Applying + operator
        val res = m1.+("10")
        
        // Displays output
        println(res)
    
    }
}

Output:

List()10

Scala List ::() operator with example

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