Java tutorial
import java.util.Arrays; public class Main { public static void main(String[] args) { // initializing char array char arr[] = new char[] { 'a', 'b', 'c', 'd', 'e', 'f' }; System.out.println(Arrays.toString(arr)); // using fill for placing z from index 2 to 4 Arrays.fill(arr, 2, 4, 'z'); System.out.println(Arrays.toString(arr)); } }