java - change state of toggle button by clicking another toggle button with setSelected event -

i want change state of toggle button clicking toggle button. code doesnt work that. there problem part:

private void jtogglebutton12actionperformed(java.awt.event.actionevent evt) {                                                         processvalue("+");         if(values.contains("+"))             jtogglebutton12.setselected(true);         else             jtogglebutton12.isselected();     }  private void jtogglebutton13actionperformed(java.awt.event.actionevent evt) {                                                     processvalue("-");     if(values.contains("-"))         jtogglebutton13.setselected(true);     else         jtogglebutton13.isselected(); }                                                 private void jtogglebutton14actionperformed(java.awt.event.actionevent evt) {                                                     processvalue("*");     if(values.contains("*"))         jtogglebutton14.setselected(true);     else         jtogglebutton14.isselected(); }                                                 private void jtogglebutton15actionperformed(java.awt.event.actionevent evt) {                                                     processvalue("/");     if(values.contains("/"))         jtogglebutton15.setselected(true);     else         jtogglebutton15.isselected(); }                         

this code selects joggle button , when click still selected.

rather manually handling every toggle , un-toggle of every button, can add buttons buttongroup

code so:

buttongroup group = new buttongroup();  group.add(jtogglebutton1); group.add(jtogglebutton2); group.add(jtogglebutton3); //...etc 

this automatically handle un-toggling of every button. need handle every button do.