public static Integer subStringToInteger(String src, String start, String to) {
        return stringToInteger(subString(src, start, to));
    }
@Test
    public void testSubStringToInteger() {
        Assert.assertNull(StringUtils.subStringToInteger("foobar", "1", "3"));

        Assert.assertEquals(new Integer(2),
                StringUtils.subStringToInteger("1234", "1", "3"));
    }