awt-eventqueue

Exception in thread “AWT-EventQueue-0” java.lang.NullPointerException Error

陌路散爱 提交于 2019-11-26 20:28:12
问题 Hello I'm a new programmer at an high school level as a result I do not know much about programming and am getting quite a few errors which have been resolved while others I completely do not understand. I am to make a simple Check Box selection program where the user gets to pick between a variety of choices and depending on their action the image changes. The program itself compiles perfectly but when I run it however it gives me some complications. Here is my program: package components;