Looks like ad is never being constructed. Thus,
ad.addElement(a);
throws a NullPointerException.
-Rob
On Fri, 12 Nov 1999, Dirk Waxweiler wrote:
> Vector ad = null;
> ...
> void readwinners(String winners) throws Exception{
> String a = null, b = null;
> File infile = new File(winners);
> BufferedReader br = new BufferedReader(new FileReader(infile));
> do{
> a = br.readLine();
> System.out.println(a);
> if (a != null) {
> ad.addElement(a);
> }
> }while(a != null);
> }
>
> public void actionPerformed(ActionEvent event){
> String winnersstr = winnersTF.getText();
> String address = addressTF.getText();
> String outputfile = outputfileTF.getText();
> try{
> readwinners(winnersstr);
> ...
>
> result: "java.lang.NullPointerException"
>
>
> ==========================================================
> Dirk Waxweiler
> incotech * 23,rue des Bruyères * L-1274 Howald/Luxembourg
> Tel.: +352 29 53 83 -1 * Fax: +352 29 53 83 222
> e-mail: [EMAIL PROTECTED] * internet: www.incotech.lu
> ==========================================================
>
>
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