mn greshno tva s listenera. vse oshet mozesh da pastenesh s mishkata tekst
malko po-pravilno reshenie

public class ITextField extends JTextField {

public ITextField(){
setDocument(new DigitFilter());
}
public ITextField(String text){
super(text);
setDocument(new DigitFilter());
}

public static boolean isNumber(String s){
if (s == null)
return false;
try {
new java.math.BigDecimal(s);
return true;
}
catch (Exception _ex) {
}
return false;
}

public static class DigitFilter extends PlainDocument {
private boolean accept(String s) {
return isNumber(s);
}

public void insertString(int offs, String str, AttributeSet a) throws BadLocationException {
if (accept(str)) {
super.insertString(offs,str,a);
}
}
}

}

Johny Cage


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