java How to set jframe to full screen in java?

[Shammikit]

i found this code online,what it does is open up a blank jframe behind my jframe and that is displayed in full screen. i want to put my current jframe to fullscreen.can someone please help me with it

The code i found:

 

[-iSynthesis]

Try to add this to your code:

setExtendedState(JFrame.MAXIMIZED_BOTH);
setUndecorated(true);
setVisible(true);