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Scala Set +() method with example
  • Last Updated : 18 Oct, 2019
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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)

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