Question

How can i obtain a frame that doesn’t have a close, minimize and restore button by default ?

And how can i obtain a frame that only has a close button as in :

Answer 1

myTopLevelContainer#setUndecorated(true);

but only JFrame have got three buttons –> close, minimize and restore buttons, JDialog has only one close button, and JWindow is un-decorated by default, maybe there is your way, notice JWindow required JFrame as parent, JFrame should’t be dispayed,