Question

I have very simple question. In my application I have some TextEdit fields. I want the user to fill all the TextEdit fields and then click on finish button. But after the finish button is pressed I want to check the validity of input text in TextEdit boxes.

1. How to check the input is a valid email id?
2. How to check the input is a valid phone number?
3. How to check a password entered is of length 4 and contains specific characters only?

Is there any in-built feature to do all these in SDK or I need to code myself. If I need to do by myself can anybody suggest what I need to do for accomplishing the above task?

Answer 1

try this ::

Pattern pattern = Pattern.compile(".* (Ka).*");
Matcher matcher = pattern.matcher("Manoj Kumar Kashyap");
if(matcher.matches())
{
    int idx = matcher.start(1);
}