Java tutorial
import java.util.Arrays; public class Main { public static void main(String[] args) { // initializing long array long arr[] = new long[] { 1, 5, 9, 3, 7 }; System.out.println(Arrays.toString(arr)); // using fill for placing 10 from index 1 to 3 Arrays.fill(arr, 1, 3, 10); System.out.println(Arrays.toString(arr)); } }