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The JTextField shows up, but I still cannot add anything from within the code. I also tried adding a JTextField to the layout (out of curiosity) and that did not help either. FlowLayout (int align, int HorizontalGap, int VerticalGap ): It will Construct a new FlowLayout with given alignment, the given horizontal and vertical gap between the. FlowLayout (int align) : It will Construct a new FlowLayout with given alignment.The horizontal and vertical gap will be 5 pixels.
#NULLPOINTEREXCEPTION JAVA NEW FLOWLAYOUT HOW TO#
Constructors : FlowLayout (): It will Construct a new FlowLayout with centered alignment.The horizontal and vertical gap will be 5 pixels. How to solve null pointer exception Here is my code. When I try to add anything to that panel, I get a null pointer exception even though the panel is definitely not null. The default layout of applet and panel is FlowLayout. JXPanel() Creates a new JXPanel with a double buffer and a flow layout. I created a blank JPanel "questionPanel" with the ItelliJ GridLayoutManager. Process:, PID: 23021 : Attempt to invoke interface method 'void . Nested classes/interfaces inherited from class. Most of the code behind the panel is unfortunately hidden within the gui creator and not editable by me. I am having a problem with IntelliJ's java gui creation.