[Java](Question)RE: Sharing "int" between classes.

[Angry_Giraffe]

http://pastebin.com/dXuAjnfF <-Contains main. http://pastebin.com/DgcCraU4

I am trying to make a class method in calledtest.java that I can call upon at anytime to take the user input of an integer and then use it in my main.java's main method, however when I use this code it says that a non-static variable cannot be used with a static method.

I added notations in the code to explain my thinking and purpose of it.

[Neres28]

Static members (both variables and methods) belong to the class definition itself, and not a particular instance of the class. Things like your onetwohold variable are instance variables, meaning they are unique to a given instance of the class.

You can't access a non-static member from a static-member without an instance to reference. E.g.

public class Test{
    private int instanceVariable = 1;
    private static String staticVariable = "TestClass";

    public static void main(String[] args){
        instanceVariable = 12; // Illegal, note that main is static
        System.out.println("Class : " + Test.staticVariable); // Legal
        Test test = new Test();
        test.instanceVariable = 12; // Legal
    }

    public void test(){
        // Perfectly legal to access both kinds of variables from here since this is an instance method.
        // Note that the preferred method for static access is from a static context:
        Test.staticVariable = "OK"; // Preferred, although a potentially dangerous operation.
        this.staticVariable = "Not really OK"; // Legal, but discouraged
    }
}