How to create a copy of Boolean Array in Java?

Declaration :

public static boolean[] copyOf(boolean[] original,int newLength)

1	public static boolean[] copyOf(boolean[] original,int newLength)

Explanation :

Purpose	The java.util.Arrays.copyOf(boolean[] originalint newLength) method copies the specified array truncating or padding with false (if necessary) so the copy has the specified length. For all indices that are valid in both the original array and the copy the two arrays will contain identical values. For any indices that are valid in the copy but not the original the copy will contain false. Such indices will exist if and only if the specified length is greater than that of the original array.
Parameters	original ===> This is the array to be copied.
	newLength ===> This is the length of the copy to be returned.
Return Value	This method returns a copy of the original array truncated or padded with false elements to obtain the specified length.
Exception	NegativeArraySizeException — If newLength is negative. ,NullPointerException — If original is null.

Java Program : Example

Below example will explain java.util.Arrays.copyOf() method.

package com.c4learn;
import java.util.Arrays;
public class ArrayDemo {
	public static void main(String[] args) {
		// Intialize an array arr1
		boolean[] arr1 = new boolean[] { false, false };
		// Print the array
		System.out.println("First Array :");
		for (int i = 0; i < arr1.length; i++) {
			System.out.println(arr1[i]);
		}
		// Copy array
		boolean[] arr2 = Arrays.copyOf(arr1, 6);
		arr2[2] = false;
		arr2[3] = true;
		arr2[4] = false;
		arr2[5] = true;
		// Print the new array
		System.out.println("New array:");
		for (int i = 0; i < arr2.length; i++) {
			System.out.println(arr2[i]);
		}
	}
}

package com.c4learn;

import java.util.Arrays;

public class ArrayDemo {

public static void main(String[] args) {

// Intialize an array arr1

boolean[] arr1 = new boolean[] { false, false };

// Print the array

System.out.println("First Array :");

for (int i = 0; i < arr1.length; i++) {

System.out.println(arr1[i]);

}

// Copy array

boolean[] arr2 = Arrays.copyOf(arr1, 6);

arr2[2] = false;

arr2[3] = true;

arr2[4] = false;

arr2[5] = true;

// Print the new array

System.out.println("New array:");

for (int i = 0; i < arr2.length; i++) {

System.out.println(arr2[i]);

}

Output of Program :

First Array :
false
false
New array:
false
false
false
true
false
true

First Array :

false

New array:

false

true

false

true

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