ввimport java.util.regex.*;

public static void strTokenizer(StringBuffer str, String[] tokens) {
    int elements = 0;
    int i = 0;
    int start = 0;
    int end = 0;
    String separator = " ";
    while(str.charAt(elements) != '.') {
        if(str.charAt(elements + 1) == ' ') {
            end = str.indexOf(separator, start);
            if(end > 0) {
                tokens[i++] = (str.substring(start, end));
                start = end + separator.length();
            }
            else tokens[i++] = (str.substring(start));
        }
        elements++;
    }
    end = str.indexOf(".", start);
    tokens[i++] = (str.substring(start, end));