LineInfo help!

LineInfo.java

/**
 * LineInfo class
 * 
 * @author sinister
 * 
 */
public class LineInfo {

    private String myLine;

    public LineInfo(String line) {
        myLine = line;
    }

    /**
     * sees the number of words
     * 
     * @Author sinister
     * @return the number of words
     */
    public int numWords() {
        int size = 0;
        String line = myLine.trim();

        if (line.length() > 0) {
            size = 1;
            for (int i = 0; i < line.length(); i++) {
                if (line.charAt(i) == ' ') {
                    size++;
                }
            }
        }
        return size;
    }// end numWords()

    /**
     * sees how many occurances of str there are in myLine
     * 
     * @author sinister
     * @param str
     *            the string that is used
     * @return the number of occurrences of str in myLine
     */
    public int numOccurances(String str) {
        int occ = 0;
        String line = myLine.trim();
        int ind = 0;
        while (true) {
            if (line.indexOf(str, ind) >= 0 && ind != -1) {
                occ++;
                ind = line.indexOf(str, ind + 1);
            } else {
                return occ;
            }
        }
    }

    /**
     * Compares whether myLine or LineInfo otherLine has more occurances of str
     * 
     * @author sinister
     * @param str
     *            string that is used for comparison
     * @param otherLine
     *            the word that is compared along with myLine
     * @return the string with more occurances of str
     */
    public String moreOccurances(String str, LineInfo otherLine) {
        /*
         * What this method should do: precondition: str is not null
         * postcondition: Prints the LineInfo that has more occurances of string
         * - myLine or otherLine. if they have the same # occurances, myLine is
         * returned. if neither contains str, "" is returned.
         */
        
        return "";
    }

    /**
     * getter!
     * 
     * @author sinister
     * @return myLine the variable in question
     */
    public String getInfo() {
        return myLine;
    }
}