Java Spliterator trySplit() Method

The trySplit() method of Java Interface Spliterator is used to split the invoking spliterator. If this spliterator can be partitioned, returns a reference to a new spliterator for the partition, otherwise, it returns null.

Syntax

Following is the declaration of trySplit() method-

Parameter

This method does not accept any parameter.

Return

The trySplit() method returns a spliterator covering some portion of the elements or returns null if this spliterator cannot be split.

Exceptions

Compatibility Version

Java 1.8 and above

Example 1

import java.util.*;
public class InterfaceSpliteratorTrySplitExample1 {  
	public static void main (String[] args) {
		List<String> list = Arrays.asList("Java", "Android", "MySQL", "Python");
		Spliterator<String> splitr = list.spliterator();
		Spliterator<String> st = splitr.trySplit();
		splitr.forEachRemaining(System.out::println);
		System.out.println("--Traversing the other half of the spliterator---");
		st.forEachRemaining(System.out::println);
    }
}

Test it Now

Output:

MySQL
Python
--Traversing the other half of the spliterator---
Java
Android

Example 2

import java.util.*;
import java.util.stream.Stream;
public class InterfaceSpliteratorTrySplitExample2 {  
     public static void main(String args[]){
    	   //Create an object of array list
         ArrayList<Integer> list = new ArrayList<>();             
         //Add values to the array list.
         list.add(101);
         list.add(201);
         list.add(301);
         list.add(401);
         list.add(501);                      
         Stream<Integer> str = list.stream();             
         //Get Spliterator object on list
         Spliterator<Integer> splitr1 = str.spliterator();                             
         System.out.println("Elements of ArrayList: ");
         //forEachRemaining method    
         splitr1.forEachRemaining((n) -> System.out.println(n));         
         //Obtaining another Stream to the array list.
         Stream<Integer> str1 = list.stream();
         splitr1 = str1.spliterator();          
         //Use trySplit() method
         Spliterator<Integer> splitr2 = splitr1.trySplit();        
         System.out.println("Output from splitr2: ");
         splitr2.forEachRemaining((n) -> System.out.println(n));        
         //Now, use the splitr
         System.out.println("Output from splitr1: ");
         splitr1.forEachRemaining((n) -> System.out.println(n));
         }
}

Test it Now

Output:

Elements of ArrayList: 
101
201
301
401
501
Output from splitr2: 
101
201
Output from splitr1: 
301
401
501

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Java Spliterator Class