TextField Validation

[Mir]

Hi All

how to set text field validation only numeric values?

Help me

[Eranga]

Try something like this,

Code:

String temp = txtField.getText();
try {
    int val = Integer.parseInt(temp);
}
catch(NumberFormatException e) {
    System.out.println("Invalid");
}

[Mir]

Quote:

Originally Posted by Eranga

Try something like this,

Code:

String temp = txtField.getText();
try {
    int val = Integer.parseInt(temp);
}
catch(NumberFormatException e) {
    System.out.println("Invalid");
}

Thxs sir

Through this i can validate for only interger. Sir i want to validate for IP formate

Code:

0.0.0.0

I use float but it only take "0.0" formate.So how can i set the validation for "0.0.0.0" this formate..

[Eranga]

In that sense try to make a pattern and validate. Or in simple way, validate each number separating with the dot. Since you are talking about IPs, best thing would be patterns.

[Mir]

Quote:

Originally Posted by Eranga

In that sense try to make a pattern and validate. Or in simple way, validate each number separating with the dot. Since you are talking about IPs, best thing would be patterns.

ok Can you give me some idia of patterns code..

[Eranga]

Refer regex documentation.

[Niveditha]

One more way is u can trim the IP address for "." and then do a Integer.parseInt() for each part.

[Eranga]

Quote:

Originally Posted by Niveditha

One more way is u can trim the IP address for "." and then do a Integer.parseInt() for each part.

Yes, this is the easiest way if you don't know how to deal with patterns.

[Fubarable]

JFormattedTextField

[Eranga]

I don't think he want to read that a long material.