Finding repeated words on a string and counting the repetitions

Question

I need to find repeated words on a string, and then count how many times they were repeated. So basically, if the input string is this:

String s = \"House, House         


        

Answer 1

public class Counter {

private static final int COMMA_AND_SPACE_PLACE = 2;

private String mTextToCount;
private ArrayList mSeparateWordsList;

public Counter(String mTextToCount) {
    this.mTextToCount = mTextToCount;

    mSeparateWordsList = cutStringIntoSeparateWords(mTextToCount);
}

private ArrayList cutStringIntoSeparateWords(String text)
{
    ArrayList returnedArrayList = new ArrayList<>();


    if(text.indexOf(',') == -1)
    {
        returnedArrayList.add(text);
        return returnedArrayList;
    }

    int position1 = 0;
    int position2 = 0;

    while(position2 < text.length())
    {
        char c = ',';
        if(text.toCharArray()[position2] == c)
        {
            String tmp = text.substring(position1, position2);
            position1 += tmp.length() + COMMA_AND_SPACE_PLACE;
            returnedArrayList.add(tmp);
        }
        position2++;
    }

    if(position1 < position2)
    {
        returnedArrayList.add(text.substring(position1, position2));
    }

    return returnedArrayList;
}

public int[] countWords()
{
    if(mSeparateWordsList == null) return null;


    HashMap wordsMap = new HashMap<>();

    for(String s: mSeparateWordsList)
    {
        int cnt;

        if(wordsMap.containsKey(s))
        {
            cnt = wordsMap.get(s);
            cnt++;
        } else {
            cnt = 1;
        }
        wordsMap.put(s, cnt);
    }                
    return printCounterResults(wordsMap);
}

private int[] printCounterResults(HashMap m)
{        
    int index = 0;
    int[] returnedIntArray = new int[m.size()];

    for(int i: m.values())
    {
        returnedIntArray[index] = i;
        index++;
    }

    return returnedIntArray;

}

}