java - Click on JTable Model Updates JTextfield -

i have jtable custom abstract table model , select row in table , information appear in textboxes left. happen automatically out use use of buttons. approach can think of involves button. table model looks this:

public class admintablemodel extends abstracttablemodel { private arraylist<contestant> contestants; private string[] columns={"first name", "last name", "entry"};  public admintablemodel(arraylist<contestant> contestants) {     this.contestants = contestants; }  public admintablemodel(list l) {     contestants.addall(l); }  public int getrowcount() {     return contestants.size(); }  public int getcolumncount() {     return columns.length; }  public string getcolumnname(int col) {     return columns[col]; }  public object getvalueat(int row, int col) {     contestant contestant = contestants.get(row);     switch(col){         case 0:             return contestant.getfirst_name();         case 1:             return contestant.getlast_name();         case 2:             return contestant.getentry();         default:             return null;     } }  } 

with code table looking this:

public class contestantstable extends jtable{  public contestantstable(arraylist<contestant> contestants) {      admintablemodel atmodel = new admintablemodel(contestants);     this.setmodel(atmodel);     atmodel.firetabledatachanged(); }  } 

here panel text fields want refresh:

public class contestantaddpanel extends jpanel { private jlabel jlfirst_name; private jlabel jllast_name; private jlabel jlentry;  private jtextfield jtffirst_name; private jtextfield jtflast_name; private jtextfield jtfentry;  public contestantaddpanel() {     jlfirst_name = new jlabel("first name: ");     jllast_name = new jlabel("last name: ");     jlentry = new jlabel("entry: ");      jtffirst_name = new jtextfield();     jtflast_name = new jtextfield();     jtfentry = new jtextfield();      this.setlayout(new gridlayout(3,2));      this.add(jlfirst_name);     this.add(jtffirst_name);     this.add(jllast_name);     this.add(jtflast_name);     this.add(jlentry);     this.add(jtfentry); }  public string getfirstname(){     return jtffirst_name.gettext(); }  public string getlastname(){     return jtflast_name.gettext(); }  public string getentry(){     return jtfentry.gettext(); }    } 

i not looking write me solution, looking guidance cannot seem find want on google. such link tutorial, oracle 1 isn't informative on matter don't want update row in table in textfields.

jtable has listselectionmodel, can access getselectionmodel(). can add listener , notified of row selection events. listeners need implement javax.swing.event.listselectionlistener interface , notified via valuechanged(..). code something similar this:

public contestantaddpanel() implements listselectionlistener { ...     public valuechanged(listselectionevent e) {       ...    } ... } 

and

mytable.getselectionmodel().addlistselectionlistener(<some instance of panel>); 

this should enough started, if need more info please post comment. don't have links tutorial, sorry.

edit:

how write list selection listener