public static String repeat(char c, int count) {
        StringBuffer buffer = new StringBuffer(count);
        for (int i = 0; i < count; i++)
            buffer.append(c);
        return buffer.toString();
    }

    public static String repeat(String s, int count) {
        StringBuffer buffer = new StringBuffer(s.length() * count);
        for (int i = 0; i < count; i++)
            buffer.append(s);
        return buffer.toString();
    }