IntStream distinct() in Java with examples

IntStream distinct() is a method in java.util.stream.IntStream. This method returns a stream consisting of the distinct elements. This is a stateful intermediate operation i.e, it may incorporate state from previously seen elements when processing new elements. Syntax :

IntStream distinct()

Where, IntStream is a sequence of 
primitive int-valued elements.

Below given are some examples to understand the function in a better way. Example 1 : Printing distinct elements of Integer stream.

Java

// Java code for IntStream distinct()
import java.util.*;
import java.util.stream.IntStream;

class GFG {
    
    // Driver code
    public static void main(String[] args) {
            
    // creating a stream     
    IntStream stream = IntStream.of(2, 3, 3, 5, 6, 6, 8);
    
    // Displaying only distinct elements
    // using the distinct() method
    stream.distinct().forEach(System.out::println);
    
}
}

Output :

Example 2 : Counting value of distinct elements in a stream.

Java

// Java code for IntStream distinct() method
// to count the number of distinct 
// elements in given stream
import java.util.*;
import java.util.stream.IntStream;

class GFG {
    
    // Driver code
    public static void main(String[] args) {
            
    // creating a stream     
    IntStream stream = IntStream.of(2, 3, 3, 5, 6, 6, 8);
    
    // storing the count of distinct elements
    // in a variable named total
    long total = stream.distinct().count();
    
    // displaying the total number of elements
    System.out.println(total);
}
}

Output :

IntStream distinct() in Java with examples

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