You could accomplish this in one of many ways:
1. Create an interface with the signature of the 'doShow' method and make the
classes A, B, and C implement this interface.
2. Use inheritance: Create a class X and have classes A, B, and C extend that
class.
and the doShow methods are defined as follows:
in A:
doShow()
{
System.out.println("Doshow method in Class A");
}
in B:
doShow()
{
System.out.println("Doshow method in Class B");
}
in C:
doShow()
{
System.out.println("Doshow method in Class C");
}
Then in the show method:
public void show(X var)
{
var.doShow();
}
and in the calling method if you have the following:
A var1 = new A();
B var2 = new B();
C var3 = new C();
show(var1);
show(var2);
show(var3);
The output will be as follows:
Doshow method in Class A
Doshow method in Class B
Doshow method in Class C
Hope this helps.
> Scope: Java
> Q:
> if you have three class A, B, and C all have the same method doShow();
> We only know that all inherit from Class Object (like all other classes do).
>
> Is it possible to have a public function that takes in an Class Object that
> may belong
> to A, B, or C, and call doShow()?
>
> Something conception like:
>
> public void show(Object o) {
> o.doShow();
> }
>
> Of course the above code won't compile. One way to hack it is to use
> "InstanceOf" (one of the answer) but it's a unclean hack.
>
> Anyone has any better ideas? I thought about going from Object.getClass(),
> but it does
> not seem to be the way.
>
> ===========================================================================
> To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-
INTEREST".
> For digest: mailto [EMAIL PROTECTED] with body: "set JSP-INTEREST DIGEST".
> Some relevant FAQs on JSP/Servlets can be found at:
>
> http://java.sun.com/products/jsp/faq.html
> http://www.esperanto.org.nz/jsp/jspfaq.html
> http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
> http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
Namratha Reddy
Staff Consultant
High Gear Inc.
Phone: (262)814-1660 ext.522
E-Mail: [EMAIL PROTECTED]
www.high-gear.com
===========================================================================
To unsubscribe: mailto [EMAIL PROTECTED] with body: "signoff JSP-INTEREST".
For digest: mailto [EMAIL PROTECTED] with body: "set JSP-INTEREST DIGEST".
Some relevant FAQs on JSP/Servlets can be found at:
http://java.sun.com/products/jsp/faq.html
http://www.esperanto.org.nz/jsp/jspfaq.html
http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP
http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
