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Scala immutable TreeSet diff() method

  • Last Updated : 19 Apr, 2020

In Scala immutable TreeSet class the diff() method is used to find the difference between the two TreeSet. It deletes elements that are present in one TreeSet from the other one.

Method Definition: def diff[B >: A](that: collection.Seq[B]): TreeSet[A]

Return Type: It returns a new TreeSet which consists of elements after the difference between the two given TreeSet.

Example #1:




// Scala program of diff() 
// method 
  
// Import TreeSet
import scala.collection.immutable._
  
// Creating object 
object GfG 
  
    // Main method 
    def main(args:Array[String]) 
    
      
        // Creating TreeSet
        val t1 = TreeSet(1, 2, 3, 4, 5)  
            
        val t2 = TreeSet(3, 4, 5)  
            
        // Print the TreeSet 
        println("TreeSet_1: " + t1
            
        println("TreeSet_2: " + t2
            
        // Applying diff method  
        val result = t1.diff(t2)  
            
        // Displays output  
        print("(TreeSet_1 - TreeSet_2): " + result) 
          
    
Output:
TreeSet_1: TreeSet(1, 2, 3, 4, 5)
TreeSet_2: TreeSet(3, 4, 5)
(TreeSet_1 - TreeSet_2): TreeSet(1, 2)

Example #2:




// Scala program of diff() 
// method 
  
// Import TreeSet
import scala.collection.immutable._
  
// Creating object 
object GfG 
  
    // Main method 
    def main(args:Array[String]) 
    
      
        // Creating TreeSet
        val t1 = TreeSet(1, 2, 3, 4, 5)  
            
        val t2 = TreeSet(3, 4, 5, 6, 7, 8)  
            
        // Print the TreeSet 
        println("TreeSet_1: " + t1
            
        println("TreeSet_2: " + t2
            
        // Applying diff method  
        val result = t2.diff(t1)  
            
        // Displays output  
        print("(TreeSet_2 - TreeSet_1): " + result) 
          
    
Output:
TreeSet_1: TreeSet(1, 2, 3, 4, 5)
TreeSet_2: TreeSet(3, 4, 5, 6, 7, 8)
(TreeSet_2 - TreeSet_1): TreeSet(6, 7, 8)

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