java - JList selection to String and be able to save in a text file -

i creating program class pizza ordering form. have code set whatever selection chosen placed textfield called getmetheorder. put selections picked text file receipt of order.

this how set list , working out issue.

object selected[] = toplist.getselectedvalues();         string tops = "";         // use loop obtain names of selected items         (int k = 0;k < selected.length ; k++ )         {             tops += selected[k] + ",";         }         getmetheorder.settext( sizepicked + tops );  string[] selecteditems = new string[selected.length];  for(int i=0; i<selected.length;i++){ selecteditems[i] = selected[i].tostring(); 

i make when user selects pepperoni, peppers , mushrooms example, insert text file.

   try { bufferedwriter out = new bufferedwriter(new filewriter("yourpizzaorder.txt")); out.write("thank using online pizza ordering program."); out.newline(); out.write("your order created on"+" "+today); out.newline(); out.write("*------------------------------------------------------*"); out.newline();  out.write("a " + sizepicked + " "+ //this want items jlist appear ); out.close(); } catch (ioexception e) {   system.out.println("exception "); } 

the sizepicked variable button group selection of small, medium, , large. working , outputting text file planned. bit confused on how list selection appear.

you like...

stringbuilder sb = new stringbuilder(64); (string value : selecteditems) {     if (sb.length() > 0) {         sb.append(", ");     }     sb.append(value); }  out.write("a " + sizepicked + " "+ sb.tostring());