Counter

package counter;

import java.util.Scanner;


public class Counter
{
        public static void main (String[] args)
    {
        String phrase = null; // a string of characters
        int countBlank; // the number of blanks (spaces) in the phrase
        int length, countA=0, countT=0, countS=0, countE=0; // the length of the phrase
        char ch; // an individual character in the string
        int i=0;
        Scanner scan = new Scanner(System.in);

        // Print a program header
        System.out.println ();
        System.out.println ("Character Counter");
        System.out.println ();

        // Read in a string and find its length
        System.out.print ("Enter a sentence or phrase (quit to stop): ");


        // Initialize counts
        countBlank = 0;
        // a for loop to go through the string character by character and count
        ch = ' ';
        // the blank spaces.  Print the results
        String quit = null;

        while (!phrase.equals("quit"))
        {
            phrase = scan.nextLine();
            phrase = phrase.toLowerCase();
            length = phrase.length();
            for (i = 0; i < phrase.length(); i++)
            {
                ch = phrase.charAt(i);

                switch (ch)
                {
                case 'a':
                countA++;
                        break;
                case 'e':
                countE++;
                        break;
                case 's':
                 countS++;
                        break;
                case 't':
                 countT++;
                        break;
                case ' ': countBlank++;
                        break;
                }
            }

            break;
        }


        System.out.println ("Number of blank spaces: " + countBlank);
        System.out.println ("Number of A's: " +countA);
        System.out.println("Number of E's: " +countE);
        System.out.println ("Number of T's: " + countT);
        System.out.println ("Number of S's: " + countS);

    }


}