Java IntStream reduce
import java.util.stream.IntStream; public class Main { public static void main(String[] args) { int[] values = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0}; IntStream intStream = IntStream.of(values); // sum of values with reduce method int r = intStream.reduce(0, (x, y) -> x + y); //ww w .j ava 2 s .c o m System.out.println("sum:"+r); } }