Question

Im looking to create a GUI along the lines of:
https://i.stack.imgur.com/qRFA9.jpg

No boarders or title bar. Very clean and simple.
How would I go about doing this?

Answer 1

You can do this with AWT or Swing by using Frame#setUndecorated(boolean):

JFrame frame = new JFrame("Title");
frame.setUndecorated(true);
frame.pack();
frame.setSize(800, 600);
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.setVisible(true);