test

package Test;

import java.util.ArrayList;


/**
 * Count the number of Duplicates
 * Write a function that will return the count of distinct case-insensitive alphabetic characters and numeric digits that
 * occur more than once in    * the input string. The input string can be assumed to contain only alphabets
 * (both uppercase and lowercase) and numeric digits.
 * <p>
 * Example
 * "abcde" -> 0 # no characters repeats more than once
 * "aabbcde" -> 2 # 'a' and 'b'
 * "aabBcde" -> 2 # 'a' occurs twice and 'b' twice (bandB)
 * "indivisibility" -> 1 # 'i' occurs six times
 * "Indivisibilities" -> 2 # 'i' occurs seven times and 's' occurs twice
 * "aA11" -> 2 # 'a' and '1'
 * "ABBA" -> 2 # 'A' and 'B' each occur twice
 */
public class App
{
    public static void main(String[] args)
    {
        System.out.println("Output should be 0: " + duplicateCount("abcde"));
        System.out.println("Output should be 2: " + duplicateCount("aabbcde"));
        System.out.println("Output should be 2: " + duplicateCount("aabBcde"));
        System.out.println("Output should be 1: " + duplicateCount("indivisibility"));
        System.out.println("Output should be 2: " + duplicateCount("Indivisibilities"));
        System.out.println("Output should be 2: " + duplicateCount("aA11"));
        System.out.println("Output should be 2: " + duplicateCount("ABBA"));
    }

    public static int duplicateCount(String text)
    {
        //Start to find duplicates, then count it. Maybe stream it
        char current = text.charAt(0);
        int times = 0;

        for (int i = 0; i < text.length(); i++)
        {
            int j = 0;
            while (j < text.length())
            {
                if (current == text.charAt(i) && j == 0)
                {
                    j++;
                }
                else
                {
                    if (current == text.charAt(i))
                    {
                        times++;
                    }
                }
            }
        }

        return times;
    }

    //Add a method to count the times
}