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


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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.

Live Demo
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

java_util_arrays.htm

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