Nested for-loop.

Question

I'm trying to initialize an array from an object I'm creating. However, I keep getting this
error message: /Squarelotron.java:21: error: incompatible types: int cannot be converted to int[][]
int[][] ring = squarelotron[x][j];
^
Why, then am I getting this error?
Here's a link to my code: https://code.sololearn.com/c9VypHQF73P8/#java.
According to the compiler, the error is on/starts from line 22.
Any assistance would be very much appreciated.

Answer 1

You are trying to initialize a 2D array with "a single element" of a 2D array.

Answer 2

So that means that squarelotron[x][j] is a single element?

Answer 3

Yes.
squarelotron is an array.
sauarelotron[x][j] is a single element.

Answer 4

Alright. I thought the loop would initialize the array with the first row of squarelotron[][].
I'll try initializing it the long way round and see if that brings good results.

Answer 5

But ultimately, my goal was to create a ring taking the first and last rows of squarelotron and the values along the side (imagining the squarelotron as a matrix might help you understand what I'm saying).