pretty clevor

count_occurrences_for_letter_and_in_alaphbet.java

        public static void main(String[] args) {
        String inputStr;
        String charInput;
        int totalCount = 0;
        int index = 0;
        Scanner scanner = new Scanner(System.in);

        System.out.println("Enter text to be searched: ");
        inputStr = scanner.nextLine();

        System.out.println("Enter a character: ");
        charInput = scanner.nextLine();

        while (index > -1) {
            index = inputStr.indexOf(charInput, index + 1);
            if (index > -1) {
                totalCount++;
            }
        }

        System.out.println("Number of Letter (" + charInput + ") Occurrences = " + totalCount);

        String indexes = "ABCDEFGHIJKLMNOPQRSTUVWXYZ".toLowerCase();

        int[] count = new int[indexes.length()];

        for (int i = 0; i < inputStr.length(); i++) {
            int newIndex = indexes.indexOf(inputStr.charAt(i));

            if (newIndex < 0)
                continue;

            count[newIndex]++;
        }

        for (int i = 0; i < indexes.length(); i++) {

            System.out.println(String.format("%s (%d) %s",
                    indexes.charAt(i),
                    count[i],
                    new String(new char[count[i]]).replace('\0', '*')));
        }
    }