Java Collection Tutorial - Java Arrays.fill(double[] a, int fromIndex, int toIndex, double val)

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Syntax

Arrays.fill(double[] a, int fromIndex, int toIndex, double val) has the following syntax.

public static void fill(double[] a, int fromIndex, int toIndex, double val)

Example

In the following code shows how to use Arrays.fill(double[] a, int fromIndex, int toIndex, double val) method.

/* ww w .j a v  a  2 s  . co  m*/

import java.util.Arrays;

public class Main {

  public static void main(String[] args) {
    
    // initializing double array
    double arr[] = new double[] {1.2, 5.6, 3.4, 2.3, 6.7};
    
    System.out.println(Arrays.toString(arr));

    // using fill for placing 1.2 from index 1 to 3
    Arrays.fill(arr, 1, 3, 1.2);

    System.out.println(Arrays.toString(arr));
  }
}

The code above generates the following result.

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