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Yes that works but the problem I am having is changing the cardlayout from another class, that is a different file.

I modifyed your code.

main code


package cardlayouttest;
import...

I managed to acces the class method "changeToGame". I added a System.out text to see if it worked and it did, but when I add the code "cardlayout.show(cardPanel, "2");" this error message comes up:

I created the method "changeToGame()" in the class "TicTacToe" but I can't manage to acces it through other classes.

I can't do: TicTacToe tac = new TicTacToe();

tac.changeTogame();

since...

Sorry it took me a while to respond(my internet was just too slow)

Okey looked at the cardlayout functions, found an example, and now I have this:

main code:

package tictactoe;
import...

Hello everyone, I have once again aproached a problem on my journey to Java.

What I want to do:
I want to be able to remove a Jpanel from the main class but with another class. I'll try to show...