forms - Java JTextField and JLabel save method -

i have class act form user. have lot of field , want apply particulary method model each textfield content. listener need use ? how can label content of textfield have fire event ?

public class formulaire extends jpanel {  boolean edited = false;  public formulaire(string[] labels, string[] content) {     this.setlayout(new springlayout());     int numpairs = labels.length;     (int = 0; < numpairs; i++) {         jlabel l = new jlabel(labels[i], jlabel.trailing);         this.add(l);         jtextfield textfield = new jtextfield(20);         textfield.settext(content[i]);         l.setlabelfor(textfield);         textfield.getdocument().adddocumentlistener(dclistener);         this.add(textfield);     } }