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

If you pass a String argument it will count the repetition of each word

/**
 * @param string
 * @return map which contain the word and value as the no of repatation
 */
public Map findDuplicateString(String str) {
    String[] stringArrays = str.split(" ");
    Map map = new HashMap();
    Set words = new HashSet(Arrays.asList(stringArrays));
    int count = 0;
    for (String word : words) {
        for (String temp : stringArrays) {
            if (word.equals(temp)) {
                ++count;
            }
        }
        map.put(word, count);
        count = 0;
    }

    return map;

}

output:

 Word1=2, word2=4, word2=1,. . .