Two arrays are equal if they contain the same elements in the same order. In java, we can compare two Boolean Arrays in 2 ways:
- By using Java built-in method that is .equals() method.
- By using the Naive approach.
Examples:
Input : A = [true , true , false]
A1 = [true, true, false]
Output: Both the arrays are equal.
Input : A = [true, true, false]
A1 = [true, false, true]
Output: Both the arrays are not equal.
Method 1:
 Array class in Java provides the method Arrays.equals() to check whether two arrays are equal or not.
Syntax:
public static boolean equals(boolean[] a, boolean[] a1)
Parameters:
a - one array to be tested for equality a1 - another array to be tested for equality
Returns: It returns true if both the arrays are equal else returns false.
Code:
Java
// Java Program to Compare two Boolean// Arrays using built-in function  import java.util.Arrays;  class GFG {    public static void main(String[] args)    {          // initializing both the boolean arrays        boolean[] a = new boolean[] { true, true, false };        boolean[] a1 = new boolean[] { true, true, false };          // Displaying Array1        System.out.println("Array1...");                for (int i = 0; i < a.length; i++)         {            System.out.println(a[i]);        }                // Displaying Array2        System.out.println("Array2...");        for (int j = 0; j < a1.length; j++)         {            System.out.println(a1[j]);        }          // comparing array1 and array2        boolean result = Arrays.equals(a, a1);          if (result)         {            System.out.println("Both the arrays equal ");        }        else        {            System.out.println(                "Both the arrays not equal ");        }    }} |
Output
Array1... true true false Array2... true true false Both the arrays equal
Method 2:
- In this, we will use the Naive approach to compare two arrays.
- We can run a for loop and check every element of the array and compare each one of them.
Java
// Java Program to Compare two Boolean// Arrays using Naive approach  import java.io.*;  class GFG {    public static void main(String[] args)    {        // initializing both the boolean arrays        boolean[] a = new boolean[] { true, true, false };        boolean[] a1 = new boolean[] { true, true, false };          // Displaying Array1        System.out.println("Array1...");        for (int i = 0; i < a.length; i++)         {            System.out.println(a[i]);        }                // Displaying Array2        System.out.println("Array2...");        for (int j = 0; j < a1.length; j++)         {            System.out.println(a1[j]);        }                // Comparing both the arrays        for (int i = 0; i < a.length; i++)        {            // if any element is found different we will            // print our ans and exit the program.            if (a[i] != a1[i])             {                System.out.println(                    "Both the arrays equal ");                System.exit(0);            }        }                System.out.println("Both the arrays equal ");    }} |
Output
Array1... true true false Array2... true true false Both the arrays equal
