swing - How can I hide a "java desktop application" -

i'm newbie in java deicide make application use "java desktop application" in netbeans. creates 3 file (projectnameaboutbox.java (jframe form), projectnameapp.java, projectnameview.java (jframe form , code in file)).

now, want ask how can hide , restore application when run? made systemtray it

thank you

simply frame.setvisible(false) hide , frame.setvisible(true) show.