Use the following code. U will b able to invoke.
String szClassName = "Ext1";
Class cls =
Class.forName(szClassName);
String szMethodName = "method";
Class parType[] = new Class[1];
parType[0] =
Class.forName("java.io.File");
java.lang.reflect.Method met =
cls.getMethod(szMethodName, parType);
Object clObj = cls.newInstance();
Object arg[] = new java.io.File[1];
arg[0] = (File)<some file object>;
Object bp = met.invoke(clObj, arg);
Sabari Arasu
AIG-TCS,
Ambattur,
Chennai(Madras),
India.
Ph: 91 - 44 - 6256437 Xtn:321
> -----Original Message-----
> From: Puneet Mathur [SMTP:[EMAIL PROTECTED]]
> Sent: Friday, January 25, 2002 10:56 AM
> To: [EMAIL PROTECTED]
> Subject: Need help with forName()
>
> Hi all
>
> I need help with dynamically loading classes using the forName(..) method
> of Class.
>
> I have a servlet which gets a 'application name' as a parameter -
> 'application name' is nothing but name of a Java class.
>
> Say the 'application name' is "Ext1", we have a class called 'Ext1.class'
> containing a set of methods.
>
>
> public class Ext1 {
> public static String returnSomething(String sParam1) {
> return "return from Ext1.returnSomething() with argument=" + sParam1;
> }
> }
>
> Now, my servlet contains the following code:
> ....
> import java.lang.reflect.*;
> ....
> String sApplName = "Ext1";
> Class c = Class.forName (sApplName);
> Object o = c.newInstance();
>
> Now, I want to invoke 'returnSomething(..)' method and get the return
> string value.
>
> How do I do it?
>
> Any help will be highly appreciated. Thanks in advance.
>
> Puneet
> ([EMAIL PROTECTED])
>
>
>
>
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