Project 10: Answer

import java.util.Scanner;

public class SnowballStringChecker {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("Enter a sentence:");
        String sentence = sc.nextLine().trim();

        // Check if the sentence ends with '.' or '?'
        if (!(sentence.endsWith(".") || sentence.endsWith("?"))) {
            System.out.println("INCORRECT TERMINATING CHARACTER. INVALID INPUT");
            return;
        }

        // Remove the terminating character for processing
        sentence = sentence.substring(0, sentence.length() - 1).trim();

        // Split words by one or more spaces
        String[] words = sentence.split("\\s+");

        boolean isSnowball = true;

        for (int i = 1; i < words.length; i++) {
            // Check if current word length is exactly 1 more than previous word length
            if (words[i].length() != words[i - 1].length() + 1) {
                isSnowball = false;
                break;
            }
        }

        if (isSnowball) {
            System.out.println("IT IS A SNOWBALL STRING");
        } else {
            System.out.println("IT IS NOT A SNOWBALL STRING");
        }
    }
}