public class WordUtil {
    List<Word> words;

    /**
     * Parse a sentence to obtain the unique words and the number of occurrences, and then pass each to the supplied
     * WordCountConsumer.
     *
     * @param value A sentence.
     * @return A list of Words with their count.
     */
    public void parse(String value, WordCountConsumer consumer) {
        words = new ArrayList<>();
        String[] values = value.split(" ");
        for (int i = 0; i < values.length; i++) {
            Word word = new Word(values[i], 1);
            if (words.contains(word)) {
                Word tmpWord = words.get(words.indexOf(word));
                tmpWord.setCount(tmpWord.getCount() + 1);
            } else {
                words.add(word);
            }
        }

        for (Word word : words) {
            consumer.consume(word.getValue(), word.getCount());
        }
    }

    public static void main(String[] args) {
        String test = "First half goals for Chelsea, Fulham and Leeds. Second half goals for Chelsea and Fulham.";
        WordUtil wu = new WordUtil();
        wu.parse(test, (word, count) -> System.out.println(word + " occurred " + count + " times"));
    }
}

public class Word {
    String value;
    int count;

    public Word(String value, int count) {
        super();
        this.value = value;
        this.count = count;
    }

    public String getValue() {
        return value;
    }

    public void setValue(String value) {
        this.value = value;
    }

    public int getCount() {
        return count;
    }

    @Override
    public String toString() {
        return "Word [value=" + value + ", count=" + count + "]";
    }

    public void setCount(int count) {
        this.count = count;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        Word other = (Word) obj;
        if (count != other.count) {
            return false;
        }
        if (value == null) {
            if (other.value != null) {
                return false;
            }
        } else if (!value.equals(other.value)) {
            return false;
        }
        return true;
    }

}

public interface WordCountConsumer {
    void consume(String word, int occurences);
}