Conceptual question: access to an object created in another class

[TaxpayersMoney]

I hope you will forgive me for not posting the code since I think this is a conceptual problem. In my main class I have created an object, which has its own variables of a particular value. Then in another class which handles the GUI of my program I wish to refer to this object and its values. I do not know how to do this. I can't create a new object of the same class since this would not share the same values as the object in the main class. Can anyone set my thinking straight?

[KevinWorkman]

You're going to have to pass the callee Object to the caller Object, either via a set method or by passing it into the constructor.

[Tolls]

Pass the first object into the second, either in the constructor or a set method.

public class Main {
    .... main(String[] args) {
        SomeClass someObject = new SomeClass();
        MyGUI myGUI = new MyGUI(someObject);
....
    }
}

...
public class MyGUI {
    SomeClass someObject;
    public MyGUI(SomeClass someObject) {
        this.someObject = someObject;
    }
}

Something along those lines.

[TaxpayersMoney]

Very helpful. Thanks to both of you.