Hi,
I have IntelliJ and am trying to make a GUI application and it says this:
cannot invoke javax.swing.JFrame.add(java.awt.Component) because this.frame is null
Someone told me the JFrame...
Type: Posts; User: pikachuwu
Hi,
I have IntelliJ and am trying to make a GUI application and it says this:
cannot invoke javax.swing.JFrame.add(java.awt.Component) because this.frame is null
Someone told me the JFrame...