LongStream count() returns the count of elements in the stream. LongStream count() is present in java.util.stream.LongStream
Syntax :
long count()
Example 1 : Count the elements in LongStream.
// Java code for LongStream count()// to count the number of elements in// given streamimport 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, 4L, 5L, 6L, 7L, 8L); // storing the count of elements // in a variable named total long total = stream.count(); // displaying the total number of elements System.out.println(total); }} |
Output:
7
Example 2 : Count the elements in a given range.
// Java code for LongStream count()// to count the number of elements in// given range excluding the last elementimport java.util.*;import java.util.stream.LongStream; class GFG { // Driver code public static void main(String[] args) { // creating a stream LongStream stream = LongStream.range(2, 50); // storing the count of elements // in a variable named total long total = stream.count(); // displaying the total number of elements System.out.println(total); }} |
Output:
48
Example 3 : Count distinct elements in LongStream.
// Java code for LongStream count()// to count the number of distinct// elements in given streamimport 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, 4L, 4L, 7L, 7L, 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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