Scala Set +() method with example

Last Updated : 18 Oct, 2019
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 
// 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 
// 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)
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