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Scala immutable TreeSet init() method
  • Last Updated : 19 Apr, 2020

In Scala immutable TreeSet class, the init() method is utilized to return a new TreeSet that consists of all the elements except the last one.

Method Definition: def init: TreeSet[A]

Return Type: It returns a new TreeSet that consists of all the elements except the last one.

Example #1:

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// Scala program of init() 
// method 
  
// Import TreeSet
import scala.collection.immutable._
  
// Creating object 
object GfG 
  
    // Main method 
    def main(args:Array[String]) 
    
      
        // Creating TreeSet
        val t1 = TreeSet(1, 3, 2, 7, 6, 5
          
        // Print the TreeSet
        println(t1)
         
        // Applying init() method  
        val result = t1.init
          
        // Displays output 
        println("Elements of the TreeSet except the last one: " + result)
          
    

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Output:

TreeSet(1, 2, 3, 5, 6, 7)
Elements of the TreeSet except the last one: TreeSet(1, 2, 3, 5, 6)

Example #2:

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// Scala program of init() 
// method 
  
// Import TreeSet
import scala.collection.immutable._
  
// Creating object 
object GfG 
  
    // Main method 
    def main(args:Array[String]) 
    
      
        // Creating TreeSet
        val t1 = TreeSet(1, 3, 12, 7, 16, 5
          
        // Print the TreeSet
        println(t1)
         
        // Applying init() method  
        val result = t1.init
          
        // Displays output 
        println("Elements of the TreeSet except the last one: " + result)
          
    

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Output:

TreeSet(1, 3, 5, 7, 12, 16)
Elements of the TreeSet except the last one: TreeSet(1, 3, 5, 7, 12)



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