createBranchElement

[prithaa]

Hello,

public class Doc extends PlainDocument {

private static final long serialVersionUID = 1L;

/\*protected AbstractElement createDefaultRoot() {
    return super.createDefaultRoot();
}
\*/
protected Element createBranchElement(Element parent,AttributeSet a)
{
    return super.createBranchElement(parent, a);
}

}

public class TestDocView {
Doc D = new Doc();
AbstractDocument.BranchElement E1 = (BranchElement) D.getDefaultRootElement();
D.createBranchElement(E1, A);
}

I get runtime error for

D.createBranchElement(E1, A);

saying Illegal casting of AbstractDocument.BranchElement. How should I use CreateBranchElement()? Thanks Prithaa

[TorstenH]

a runtime Error?? Please use an IDE. Eclipse and Netbeans are free. No need to work on console. Your Exception pops because the method createBranchElement(Element parent, AttributeSet a) is inheriated from [AbstractDocument](http://docs.oracle.com/javase/6/docs/api/javax/swing/text/AbstractDocument.html#createBranchElement\(javax.swing.text.Element, javax.swing.text.AttributeSet))[[^](http://docs.oracle.com/javase/6/docs/api/javax/swing/text/AbstractDocument.html#createBranchElement\(javax.swing.text.Element, javax.swing.text.AttributeSet))]. I guess it doesn't return much.

regards Torsten When I'm not working

[AprNgp]

prithaa wrote:

AbstractDocument.BranchElement E1 = (BranchElement) D.getDefaultRootElement();

You haven't shown us the implementation of

getDefaultRootElement()

Also, what's the relation between BranchElement and Element.

Apurv If Java had true garbage collection, most programs would delete themselves upon execution.