9 replies to this topic

[toto_7]

Hello,

I need to check a String if has the correct date format (DD/MM/YYYY).

I have created

SimpleDateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy");

but now i dont know how to compare my String with dateFormat to find if is valid. Also i have to check if DD is from 01-31 MM is from 01-12

[wim DC]

Check http://forum.codecal...ating-date.html

[toto_7]

WoW thank you :) there is any way to fix the digits problem?

I want only valid input be DD/MM/YYYY
with this way D/M/YY is also valid

[wim DC]

new SimpleDateFormat("dd/MM/yyyy");
Should do that

[toto_7]

That's what i have :) and take it as valid

[wim DC]

Just check if the length is 10? :)

[ch3etah]

wim DC said:

Just check if the length is 10? :)

It will still validate 01/10/5678. What if you want to check for a given year, like a DOB?

[gregwarner]

01/10/5678 is a valid date (albeit 3667 years away). The only way you can check a DOB year for validity is compare the year component to this year and see if it is less than the current year.

[toto_7]

Hello Greg :) .. yes you are right. But first, my exercise was asking just check the structure, second come on, we are creating a program for civilization that will be living after 3667 years :P and finally, exams GONE !!! :) but ok useful for other members :)

[ch3etah]

You can do something like this:

int year = Integer.parseInt(date.substring(6, 10));

now you can take the year and verify it against the desired DOB

ps. Hope your exam was OK.