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I have a little problem

Hi, I want to know something not related to treehouse, im learning java, I have 4 months of experience, after those 4 months I decided that it was time to take another step, so I started building a game, I coded every single line perfectly, but when I run the project, the window is supposed to be black, and to have a white cube inside, but it just shows a white screen, I dontknow if its because my laptop is pretty crappy or its because of the coding environment (Eclipse Oxygen) can someone help me? (Sorry about my english xD, im a noob at coding, I know) I dont even know if I explained it clearly :v

John Anselmo
John Anselmo
Courses Plus Student 2,281 Points

Do you mind adding code snippets? I highly recommend you ask this on Stack Overflow: https://stackoverflow.com/