Java.util.Arrays.fill(int[], int) Method

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Description

The java.util.Arrays.fill(int[] a, int val) method assigns the specified int value to each element of the specified array of ints.

Declaration

Following is the declaration for java.util.Arrays.fill() method

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

Parameters

  • a -- This is the array to be filled.

  • val -- This is the value to be stored in all elements of the array.

Return Value

This method does not return any value.

Exception

  • NA

Example

The following example shows the usage of java.util.Arrays.fill() method.

package com.tutorialspoint;

import java.util.Arrays;

public class ArrayDemo {

  public static void main(String[] args) {
    
    // initializing int array
    int arr[] = new int[] {1, 6, 3, 2, 9};
    
    // let us print the values
    System.out.println("Actual values: ");
    for (int value : arr) {
      System.out.println("Value = " + value);
    }

    // using fill for placing 18
    Arrays.fill(arr, 18);

    // let us print the values
    System.out.println("New values after using fill() method: ");
    for (int value : arr) {
      System.out.println("Value = " + value);
    }
  }
} 

Let us compile and run the above program, this will produce the following result:

Actual values:
Value = 1
Value = 6
Value = 3
Value = 2
Value = 9
New values after using fill() method:
Value = 18
Value = 18
Value = 18
Value = 18
Value = 18



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