What is Java Program to Compare two Boolean Arrays?

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Java Program to Compare two Boolean Arrays️‍🔥

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