// **************************************************************** 
// CountLetters.java 
// 
// Reads a words from the standard input and prints the number of 
// occurrences of each letter in that word. 
// 
// **************************************************************** 
import java.util.Scanner; 
public class CountLetterse 
{ 
 public static void main(String[] args) 
 { 
 int[] counts = new int[26]; 
 Scanner scan = new Scanner(System.in); 
 //get word from user 
 System.out.print("Enter a single word (letters only, please): "); 
 String word = scan.nextLine(); 
 //convert to all upper case 
 word = word.toUpperCase(); 
 //count frequency of each letter in string 
 for (int i=0; i < word.length(); i++) {
    try {
 char current = word.charAt(i);
    counts[word.charAt(i)-'A']++; 
    }
    catch (Exception e){
        System.out.println("Reason for error:"+"!"+(char)word.charAt(i)+"!");
    }
 }
 //print frequencies 
 System.out.println(); 
 for (int i=0; i < counts.length; i++) 
 if (counts [i] != 0) 
 System.out.println((char)(i +'A') + ": " + counts[i]); 
 } 
}