Passing information between instances of classes

[Isty]

Hey folks,

Suppose I have a class A which creates an instance of class B, and an instance of class C.
Is there an easy way for B to access variables of C (and is it possible without interaction with A)?
Thanks in advance!
Isty

[Norm]

way for B to access variables of C

Have A pass to B a reference to C, say in C's constructor.
Otherwise the two classes could only get to each other's variables by making them static. Not a good solution.

[Isty]

Yeah I was indeed thinking about making everything static, but that seemed kind of artificial.
I am not at all familiar with references (gathering information right now), maybe you can give a solution for this example?

public class A {
	public A(){
		B b = new B();
		C c1 = new C();
	}
}

public class B {
	public B(){
		//Would like to get the current value of x in c1
	}
}

public class C {
	public int x;
	
	public C(){
		x=1;
	}

        //Don't know if getX() is gonna be of any use, but still:
	public int getX(){
		return x;
	}
}

[Norm]

public class A {
    public A(){
        B b = new B();
        C c1 = new C(b);  // pass reference to b so c1 can see the B object
    }
}

[Isty]

Could you provide the actual code to make that reference? I haven't been able to figure it out myself. It would be very useful!

[Norm]

Look at the code in post#4.
A reference to a class B object is passed to the class C's constructor.

[Isty]

Oh, I did not notice the change! Thanks alot, problem solved:)