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here is the error:
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at processing.core.PApplet.background(PApplet.java:15157)
at processing.setup(processing.java:5)
at...

here is the whole thing

main:



import java.awt.Window;
import javax.swing.JFrame;

Hey guys, i have a question about my code. I have everything necessary for the processing working, and the program runs fine, but whenever it gets to the line with processing, it brings up errors....