Good morning, I have a question where the interviewer enters a number,

for example: number 34158, I need to get the digit 8.

How can I get the last digit of that number,

Thanks for your directions.

Good morning, I have a question where the interviewer enters a number,

for example: number 34158, I need to get the digit 8.

How can I get the last digit of that number,

Thanks for your directions.

1 Like

Assuming your number is a NUMERIC Question, letâ€™s call it `q_number`

, I think there are at least two ways:

- Create a new variable (Long Integer)
`lastdigit_int`

with expression:`Math.Abs((int)q_number% 10)`

This will return the absolute value of the last digit. If you are fine with negative values just use`((int)q_number% 10)`

If you use decimals, it will only return the last digit of the whole part. - Create a new variable (string)
`lastdigit_string`

with expression:`Convert.ToString(q_number).Substring(Convert.ToString(q_number).Length - 1)`

This will return the last value, the last value of the fractional part if decimal is used, as a string.

If you need the output as a numeric value to use it in enabling or validation conditions you could create an additional variable`lastdigit_string_integer`

with expression:`Convert.ToInt32(lastdigit_string)`

or add the expression of`lastdigit_string`

into Convert.ToInt32(â€¦)

I guess there are more ways to do itâ€¦

3 Likes

Thanks Peter it works. If the number is a TEXT question, what would be the expression I should use?

Try this:

`Q.Right(1)`

3 Likes

Dear all,

I have a numeric question about version of questionnaire where the interviewer enters a number of 6 digits, for example: 229001.

How I can get the first digit of this number? I mean I need to get digit 2.

Many thanks for your helpâ€¦

Yo wrote that it aims to capture â€śversion of questionnaireâ€ť which sounds like to enter a unique id or identifier of interview. Try to avoid this scenario and switch to assignments using identifying questions.

To answer your question:

**First digit of Numeric Question ( num_q):**

If you want to store the result as a string create a variable of type `string`

with expression:

`> Convert.ToString(num_q).Left(1)`

**Two last digits of Numeric Question ( num_q):**

`> Convert.ToString(num_q).Right(2)`

2 Likes