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 number of words starting with letter 'A' = 4
import java.util.Scanner;
public class WordsWithLetterA
{
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
System.out.println("Enter a string: ");
String str = in.nextLine();
str = " " + str; //Add space in the begining of str
int c = 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')
c++;
}
System.out.println("Total number of words starting with letter 'A' = " + c);
}
}
Enter a string:
A tech number has even number of digits.
Total number of words starting with letter 'A' = 1
Press any key to continue . . .
First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.
Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.