//*************************************************************************************
//   LetterCount.java 		Author: Lewis/Loftus
//
//   Demonstrates the relationship between arrays an strings.
//*************************************************************************************

import java.util.Scanner;
public class LetterCount
{
	//-----------------------------------------------------------------------------------
	// Reads a sentence from the user and counts the number of uppercase and lowercase
	// letters contained in it.
	//-----------------------------------------------------------------------------------
	public static void main(String[] args)
	{
		final int NUMCHARS = 26;
		Scanner scan = new Scanner(System.in);

		int[] upper = new int[NUMCHARS];
		int[] lower = new int[NUMCHARS];

		char current;  // the current character being processed
		int other = 0;  // counter for non-alphabetics

		System.out.println("Enter a sentence:");
		String line = scan.nextLine();

		//  Count the number of each letter occurrence
		for (int ch = 0; ch < line.length(); ch++)
		{
			current = line.charAt(ch);
			if (current >= 'A' && current <= 'Z')
				upper[current-'A']++;
			else
				if (current >= 'a' && current <= 'z')
					lower[current-'a']++;
				else
					other++;
		}

		//  Print the results
		System.out.println();
		for (int letter=0; letter < upper.length; letter++)
		{
			System.out.print((char)(letter + 'A'));
			System.out.print(": " + upper[letter]);
			System.out.print("\t\t" + (char)(letter + 'a'));
			System.out.println(": " + lower[letter]);
		}

		System.out.println();
		System.out.println("Non-alphabetic characters: " + other);
	}
}