Write a program to input a sentence and convert it into uppercase and count and display the total number of words starting with a letter 'A'.

Write a program to input a sentence and convert it into uppercase and count and display the total number of words starting with a letter 'A'.

Example:

Sample Input: ADVANCEMENT AND APPLICATION OF INFORMATION TECHNOLOGY ARE EVER CHANGING.

Sample Output : Total words starting with letter 'A' = 4.

Solution:

import java.util.Scanner;

public class Year2019Q1

{

    public static void main(String args[])

    {

        Scanner in = new Scanner(System.in);

        System.out.println("Enter a string: ");

        String str = in.nextLine();

        str = " " + str;

        int count = 0;

        int len = str.length();

        str = str.toUpperCase();

        for (int i = 0; i < len - 1; i++)

        {

            if (str.charAt(i) == ' ' && str.charAt(i + 1) == 'A')

            {

                count++;

            }

        }

        System.out.println("Total words starting with letter 'A' = " + count);

    }

}

Output: