TextField Validation

Hi All

how to set text field validation only numeric values?

Help me

Try something like this,

Code:

---

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

---

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..

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.

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..

Refer regex documentation.

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

Quote:

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Originally Posted by Niveditha

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

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

JFormattedTextField

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