LongStream distinct() is a method in java.util.stream.LongStream. 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 :
LongStream distinct() Where, LongStream is a sequence of primitive long-valued elements.
Below given are some examples to understand the function in a better way.
Example 1 : Printing distinct elements of Long stream.
// Java code for LongStream distinct() import java.util.*;
import java.util.stream.LongStream;
class GFG {
// Driver code
public static void main(String[] args)
{
// creating a stream
LongStream stream = LongStream.of(2L, 3L,
3L, 5L, 6L, 6L, 8L);
// 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 LongStream distinct() method // to count the number of distinct // elements in given stream import java.util.*;
import java.util.stream.LongStream;
class GFG {
// Driver code
public static void main(String[] args)
{
// creating a stream
LongStream stream = LongStream.of(2L, 3L, 3L,
5L, 6L, 6L, 8L);
// 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
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