09. Left and Right Sum

import java.util.Scanner;

public class LeftAndRightSum {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = Integer.parseInt(scanner.nextLine());

        int leftSum = 0, rightSum = 0;

        for (int i = 0; i < n; i++) {
            leftSum += Integer.parseInt(scanner.nextLine());
        }

        for (int i = 0; i < n; i++) {
            rightSum += Integer.parseInt(scanner.nextLine());
        }

        if (leftSum == rightSum) {
            System.out.printf("Yes, sum = %d\n", leftSum);
        } else {
            System.out.printf("No, diff = %d\n", Math.abs(leftSum - rightSum));
        }
    }
}

ИЛИ:

import java.util.Scanner;

public class LeftAndRightSum {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = Integer.parseInt(scanner.nextLine());

        int leftSum = 0, rightSum = 0;

        for (int i = -n; i < n; i++) {
            if (i < 0) {
                leftSum += Integer.parseInt(scanner.nextLine());
            } else {
                rightSum += Integer.parseInt(scanner.nextLine());
            }
        }

        if (leftSum == rightSum) {
            System.out.printf("Yes, sum = %d\n", leftSum);
        } else {
            System.out.printf("No, diff = %d\n", Math.abs(leftSum - rightSum));
        }
    }
}