.fill()

The .fill() method of the Arrays class fills a given array with a given value. The value must match the data type of the array.

Arrays.fill(array, value)

Arrays.fill(array, start, end, value)

Here, array, is the array being filled and value is the value being filled in the array. start and end indices can also be specified and the fill will be confined to the given range.

The following example creates an array and then fills part of it.

import java.util.*;

public class Example {
    public static void main(String args[]) {
      String[] a = {"one", "two", "three", "four", "five", "six"};
      Arrays.fill(a, 1, 5, "zero");
      for (int i = 0; i < 6; i++) {
        System.out.println(a[i]);
       }
    }
}

This will output the following:

one
zero
zero
zero
zero
six