I want to validate text, number and email id in core java . When user enter invalid text or number or email-id it immediately show the error message in tool tip or in label using pattern matching
Please help me
Well, from what I know, you can use listeners on servlets, and is not very complicated.
You can declare it very easy. Eg:
and afterwards deploy it as:
Bear Bibeault wrote:I'll assume that this is in regards to a web UI as you posted it in the Servlets forum.
Or you could use a combination of Ajax & Server side processing using Java... here's a link to read up more ...