MaxSumArrayList.java

import java.util.ArrayList;
import java.util.Scanner;

public class HighestAdjacentSum {
 public static void main(String[] args) {
 Scanner scanner = new Scanner(System.in);
 
 ArrayList<Integer> numbers = new ArrayList<>();
 
 // Taking input from the user
 System.out.println("Enter numbers (enter any non-integer value to stop):");
 while (scanner.hasNextInt()) {
 int num = scanner.nextInt();
 numbers.add(num);
 }
 
 // Finding the sum of two adjacent numbers with the highest value
 int maxSum = Integer.MIN_VALUE;
 int maxIndex = -1;
 
 for (int i = 0; i < numbers.size() - 1; i++) {
 int sum = numbers.get(i) + numbers.get(i + 1);
 if (sum > maxSum) {
 maxSum = sum;
 maxIndex = i;
 }
 }
 
 // Displaying the result
 if (maxIndex != -1) {
 System.out.println("The sum of the two adjacent numbers with the highest value is: " + maxSum);
 System.out.println("Those numbers are: " + numbers.get(maxIndex) + " and " + numbers.get(maxIndex + 1));
 } else {
 System.out.println("There are no adjacent numbers to find the sum.");
 }
 
 scanner.close();
 }
}