Code example for SortedSet

Methods: isEmpty, join

0
        public void setPosition(int position) {
            mPosition = position;
        } 
 
        public String toString() {
            if (mMarks.isEmpty()) {
                return "."; 
            } else { 
                return "[" + TextUtils.join("", mMarks) + "]";
            } 
        } 
    } 
 
}