how to call non static method in window console application

Question

I built a console application and I\'m trying to test if my application works as expected.
I create an instance of the API class as shown in the code below but I receive an

Answer 1

You must mark ConStr, bin_Num and lblResults as static.

static String ConStr = "SERVER=myservername; Database=mydb; UID=mylogin; PWD=mypassword;encrypt=no;enlist=false";
static    String bin_Num = "201284-11-000";
static    Label lblResults;