Found some info for you on the interwebs, have a look.
swing - Java - Screen turns black, when setting a JFrame to Fullscreen - Stack Overflow
background and foreground color is not changing in...
Type: Posts; User: KucerakJM
Found some info for you on the interwebs, have a look.
swing - Java - Screen turns black, when setting a JFrame to Fullscreen - Stack Overflow
background and foreground color is not changing in...