Re: no "Friend"s in Java

On Thu, May 8, 2008 at 11:25 AM, software visualization <softwarevisualization@...> wrote:

Java & has a more fine grained approach to visibility scoping than the current one. My understanding is that it will let you do something like declare classes to be friends.

On Thu, May 8, 2008 at 7:59 AM, Matthew Lengenfelder <matt.lengenfelder@...> wrote:

tyvm :)

Matt Lengenfelder

On Thu, May 8, 2008 at 1:34 AM, Sean Carrick <seansitsolutions@...> wrote:

One way to do it, that I use often, is to create a null object of the D1View in the class you need to be able to change the JTextArea1 text from:

public class MyClass {
  private D1View frmD1View;

Then, in the MyClass constructor, accept a parameter of type D1View and create an instance of MyClass in your D1View object.

public class D1View extends JFrame {
  private MyClass myClass;

  public D1View() {
     initComponents();
       myClass = new MyClass(this);
       ...
  } // End of D1View constructor.
} // End of D1View frame.

public class MyClass {
     private D1View frmD1View;
       public MyClass ( D1View view) {
        this.frmD1View = view;
     } // end of MyClass constructor.

     private void someFunction () {
        this.frmD1View.append ( "XYZ" );
     } // end of someFunction().
} // End of MyClass.

This basically creates a "pointer" to the current instance of D1View that is in operation, since your MyClass constructor was called with "this" from the D1View constructor.

--

Cheers,

Sean Carrick
PekinSOFT Systems
sean@...
http://www.pekinsoft.net

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