Nim_Game | The Game of Nim written in Python 3 using Tkinter
kandi X-RAY | Nim_Game Summary
kandi X-RAY | Nim_Game Summary
The Game of Nim written in Python 3 using Tkinter.
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QUESTION
I'm trying to create a simple JavaFX project for school that lets the user play the game Nim. In my head the concept was simple because I have already worked with java and JavaFX before. The error occures when I try to set items in TableView by passing in a observable list. I am sure that the list contains objects that I should be able to add. I have no idea whats wrong.
Here Is all of my code:
MainController class:
...ANSWER
Answered 2021-Apr-20 at 11:17initialize()
, and hence populateTable()
, is called during the call to FXMLLoader.load()
, which necessarily happens before you call setList(...)
.
Consequently when populateTable()
is invoked, textInTextFieldToList
is still null and textInTextFieldToList.isEmpty()
throws a NullPointerException
.
Simply move the call to populateTable
to setList()
. This makes sense since you can't populate the table until the list is set, and if you were to call setList()
another time, you'd presumably want to repopulate the table.
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Install Nim_Game
You can use Nim_Game like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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