JF-LabArrays06.EqualArrays

package fundamentals.arrays;
import java.util.Arrays;
import java.util.Scanner;

public class Lab6EqualArrays {
    public static void main(String[] args) {
        Scanner scanner = new Scanner (System.in);
        int[] firstArray = parseArr(scanner);
        int[] secondArray = parseArr(scanner);
        boolean equals = Arrays.equals(firstArray,secondArray);
        int otherIndex = -1;
        for (int i = 0; i < firstArray.length; i++) {
            if (firstArray[i]!=secondArray[i]){
                otherIndex = i;
                break;
        }
        }
        if (equals){
            int sum = 0;
            for (int i : firstArray) {
                sum+=i;
            }
            System.out.printf("Arrays are identical. Sum: %d%n",sum);
        }else{
            System.out.printf("Arrays are not identical. Found difference at %d index.", otherIndex);
        }
    }

    private static int[] parseArr(Scanner scanner) {
        String firstInput = scanner.nextLine();
        String[] firstNumbers = firstInput.split(" ");
        int[] firstArray = new int[firstNumbers.length];
        for (int i = 0; i < firstArray.length; i++) {
            firstArray[i] = Integer.parseInt(firstNumbers[i]);
        }
        return firstArray;
    }
}

/*
* Read two arrays and print on the console whether they are identical or not.
*  Arrays are identical if their elements are equal. If the arrays are identical
* find the sum of the first one and print on the console following message: "Arrays are identical. Sum: {sum}",
* otherwise find the first index where the arrays differ and print on the console
* following message: "Arrays are not identical. Found difference at {index} index."*/