Setting the size of a JTextField

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Rui Pacheco - 20 Apr 2004 00:20 GMT

Hi everyone

I'd like to set the size of a JTextField and at the same time limit
the number of characters that can be entered by the user to a higher
number, i.e, the user can see 30 characters but can write 50.

How can I do this?

TIA
Rui Pacheco

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ak - 20 Apr 2004 01:37 GMT

> I'd like to set the size of a JTextField and at the same time limit
> the number of characters that can be entered by the user to a higher
> number, i.e, the user can see 30 characters but can write 50.

PlainDocument doc = new PlainDocument() {
public void insertString(int offset, String str, AttributeSet a)
throws
BadLocationException {

if(offset >= 50) {
return;
}
int max = Math.min(50 - offset, str.length);
if(max < str.length) {
str = str.substring(0, max);
}

super.insertString(offset, str, a);
}
};

JTextField tf = new JTextField(doc, "", 30);

--

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