Just read that non-static method cannot rewrite static variables.Tried and found otherwise can somebody explains ?

Question

Java static non-static differences

Answer 1

Apparently, it was written on the contrary. Like:
"non-static variable a cannot be referenced from a static context"

because non-static can rewrite static:
public class Program {
static int a=0;

public static void main(String[] args) {
new Program().test();
System.out.println(a); //1
}
void test() {
a = 1;
}
}