How to display a matrix in a window??

Question

Java

I am using java. There is a window, you need to display a matrix of numbers in the window, it is also necessary that it be possible to write numbers through the window into the matrix. I've searched a lot of sites, but I don't understand how to do it.
What should be used for this?

Answer 1

What's the window? Web browser window, or swing window? Or console?
If swing, you can use JTable: How to Use Tables

Answer 2

1. Open window.
   
2. Swallow the red pill.