setText to Jlabel with function

Question

I am trying to settext to JLabel with a function.

The checkResults function is not working for some reason I still get errors. I have 2 classe

Answer 1

The solution to this problem is expected needs to be

 @Override
 public String toString(){
 return Integer.toString(expected);
 }

Then it needs to be set to JLabel like this,

jl.setText(problems.toString());