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 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 :
2 3 5 6 8
Example 2 : Counting value of distinct elements in a stream.
// 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 :
5