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ConcurrentSkipListSet spliterator() method in Java
  • Last Updated : 10 Dec, 2018

The java.util.concurrent.ConcurrentSkipListSet.spliterator() method is an in-built function in Java which returns a weakly uniform Spliterator across the elements of this set.

Syntax:

ConcurrentSkipListSet.spliterator()

Parameters: The function does not accept any parameter.

Return Value: The function returns a Spliterator across the elements of this set.

Below programs illustrate the ConcurrentSkipListSet.spliterator() method:



Program 1:




// Java Program Demonstrate Spliterator()
// method of ConcurrentSkipListSet
  
import java.util.Spliterator;
import java.util.concurrent.ConcurrentSkipListSet;
  
class ConcurrentSkipListSetSpliteratorExample1 {
    public static void main(String[] args)
    {
        // Initializing the set
        ConcurrentSkipListSet<String> set = 
                    new ConcurrentSkipListSet<String>();
  
        // Adding elements to this set
        set.add("Gfg");
        set.add("is");
        set.add("best!!");
  
        // spliterator split and iterate
        // the split parts in parallel
        Spliterator<String> str = set.spliterator();
  
        // performs the action for each remaining element
        str.forEachRemaining(
            (n) -> {
                String lc = n.toUpperCase();
                System.out.println(" Lower case = " + n);
                System.out.println(" Upper case = " + lc);
                System.out.println();
            });
    }
}
Output:
Lower case = Gfg
Upper case = GFG

Lower case = best!!
Upper case = BEST!!

Lower case = is
Upper case = IS

Program 2:




// Java Program Demonstrate Spliterator()
// method of ConcurrentSkipListSet
  
import java.util.Spliterator;
import java.util.concurrent.ConcurrentSkipListSet;
  
class ConcurrentSkipListSetSpliteratorExample2 {
    public static void main(String[] args)
    {
        // Initializing the set
        ConcurrentSkipListSet<Character> set = 
                         new ConcurrentSkipListSet<Character>();
  
        // Adding elements to this set
        for (char ch = 'A'; ch <= 'Z'; ch++) {
            set.add(ch);
        }
  
        // Printing elements in the set
        System.out.print("The elements in the set are : ");
  
        // spliterator  split and iterate
        // the split parts in parallel
        Spliterator<Character> str = set.spliterator();
  
        // if element exists tryAdvance() will perform action
        while (str.tryAdvance((n) -> System.out.print(n + " ")))
            ;
    }
}
Output:
The elements in the set are : A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Reference: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentSkipListSet.html#spliterator–

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