/** * Simple Unit entry for the Catalog. */public class Unit {    public String unitType;    public int unitNum;    public String filename;    public float start;    public float middle;    public float end;    public Unit previous;    public Unit next;    public int index;        /**     * Creates a new Unit entry for the catalog.     *     * @param unitType the type of this unit     * @param unitNum the index of this unit     * @param filename (without extension) where the audio and STS     * data for this unit can be found     * @param start the timing info (in seconds) for where the audio     * and STS data for this unit starts in filename     * @param middle the timing info (in seconds) for where the middle     * of the audio and STS data for this unit is in filename     * @param end the timing info (in seconds) for where the audio     * and STS data for this unit ends in filename     * @param previous the unit preceding this one in the recorded     * utterance     * @param next the unit following this one in the recorded     * utterance     * @param index the index of this unit in the overall catalog     */    public Unit(        String unitType,        int unitNum,        String filename,        float start,        float middle,        float end,        Unit previous,        Unit next,        int index) {        this.unitType = unitType;        this.unitNum = unitNum;        this.filename = filename;        this.start = start;        this.middle = middle;        this.end = end;        this.previous = previous;        this.next = next;        this.index = index;    }    public String toString() {        StringBuffer buf = new StringBuffer(filename + " ");        if (previous != null) {            buf.append(previous.unitType + "_" + previous.unitNum + " ");        } else {            buf.append("CLUNIT_NONE ");        }        buf.append(unitType + "_" + unitNum);        if (next != null) {            buf.append(" " + next.unitType + "_" + next.unitNum);        } else {            buf.append(" CLUNIT_NONE");        }        buf.append(" (index=" + index + ")");                return buf.toString();    }}