How can I do a variable that can be use un all forms? (C#)

Question

For example:
Supposed to have 2 forms, We have Form A and Form B.
In Form A I do a variable called "pancake".
And I want to call that variable in Form B, how can I do that?

Answer 1

in form a:
class A {
private int n;

public int getN() {
return n;
}

}

in form b:

A a = new A();
int b = a.getN();

Answer 2

by using object-oriented programming in way: create object in form b of form a, in form a write get method for that variable which will return variable value and call that method in form b with object which did you create

Answer 3

Can you give me a Code example?

Answer 4

Thanks!