New to Java

If I have 2 classes - FirstClass and SecondClass. I want to pass FirstClass to SecondClass' constructor as follows:

public class SeconClass{


  FirstClass fc;
 
 public SecondClass(FirstClass fc){


    this.fc = fc;

}



}

I will now have access to all of FirstClass public methods. But my question is, am I creating an instance/object of FirstClass by doing this?

GF