I figured out what I was doing wrong. I have declared an instance variable, but have the same variable defined in a method. Simple fix.
Type: Posts; User: slinky29
Re: 2D array project. Takes a matrix of numbers, checks for errors in the surrounding cells, and changes numbers to symbols.
I figured out what I was doing wrong. I have declared an instance variable, but have the same variable defined in a method. Simple fix.
Re: 2D array project. Takes a matrix of numbers, checks for errors in the surrounding cells, and changes numbers to symbols.
i've tried some things out, but still get the same errors:
Exception in thread "main" java.lang.NullPointerException
at java.io.Writer.write(Writer.java:157)
at...
2D array project. Takes a matrix of numbers, checks for errors in the surrounding cells, and changes numbers to symbols.
I'm new to Java, and have been stuck on this project for days. I've exhausted as much time as I'd like, and am now admitting defeat. Would someone who is vastly superior than I give my code a...