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

Description

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

Declaration

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

public static void fill(boolean[] a, boolean 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 boolean array
    boolean arr[] = new boolean[] {true, true, false};
    
    // let us print the values
    System.out.println("Actual values: ");
    for (boolean value : arr) {
      System.out.println("Value = " + value);
    }

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

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

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

Actual values:
Value = true
Value = true
Value = false
New values after using fill() method:
Value = false
Value = false
Value = false