In my function for displaying text in textarea,i have written following lines of code but it is not displaying any text
jTextArea1.setText( Packet +"\n" +jTextArea1.getText());
I am using swingworker for performing background task,here is my code
public class SaveTraffic extends SwingWorker<Void, Void> {
public GUI f = new GUI();
@Override
public Void doInBackground() throws IOException {
//some code
sendPacket(captor.getPacket().toString());
return null;
}//end main function
@Override
public void done() {
System.out.println("I am DONE");
}
public void sendPacket(String Packet) {
f.showPackets(Packet);
}
}
and the following lines of code i have written in my GUI form
public void showPackets(String Packet) {
jTextArea1.append( Packet);
}
Solution: public class SaveTraffic extends SwingWorker {
public GUI f = new GUI();
@Override
public Void doInBackground() throws IOException {
f.add(jTextPane1);
// some code
publish(captor.getPacket().toString());
// the method below is calling sendPacket on the background thread
// which then calls showPackets on the background thread
// which then appends text into the JTextArea on the background thread
//sendPacket(captor.getPacket().toString());
return null;
}
@Override
protected void process(List<String> chunks) {
for (String text : chunks) {
jTextPane1.setText(text);
f.showPackets(text);
}
}
@Override
public void done() {
System.out.println("I am DONE");
}
}
Instead of using setText() use append()
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