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How to use java.Object.invokeMethod() ?

I'm keep on getting the following error mesage
cannot reslove symbol
symbol : method invokeMethod (java.lang.String,java.lang.Ojbect[])
location: class java.lang.Ojbect
e_MLC.invokeMethod("setTName", args);

And here's part of my code that's causing the problem

Object e_MLC;
s_MLC_tName = getTName() + "_MLC";
Class cls = Class.forName(s_MLC_tName.substring(2));
Object[] args = new Object[1];
args[0] = s_MLC_tName;
e_MLC = cls.newInstance();
e_MLC.invokeMethod("setTName", args);

How am I supposed to use invokeMethod() method?
And what am I supposed to do when there's no arguments to pass?

CEHJ

You need to get Method object and invoke them

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CEHJ

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nagunpyo

ASKER

what's wrong with invokeMethod()?

CEHJ

invokeMethod is non-existent AFAIK

TimYates

>> what's wrong with invokeMethod()?

it's part of .NET, not Java

;-)

CEHJ

>>And what am I supposed to do when there's no arguments to pass?

Pass null

SOLUTION

limaideal

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CEHJ

>>>>
>>And what am I supposed to do when there's no arguments to pass?

Pass null
>>>>

This is how:

                  Class cls = Class.forName(s_MLC_tName.substring(2));
                  Class[] argTypes = new Class[] { java.lang.String.class }; // put the correct type of arg in here
                  Method mthd = cls.getMethod( "setTName", argTypes); //find method based-on name and argument
                  mthd.invoke(cls.newInstance(), new Object[]{ null } );//invoke method here

limaideal

if you want to call something like doMyJob(), you need to:

mthd.invoke(cls.newInstance(), null);//invoke method here

The following is Doc from Method.invoke:
If the number of formal parameters required by the underlying method is
0, the supplied <code>args</code> array may be of length 0 or null.

nagunpyo

ASKER

Thank you guys! :-D

CEHJ

:-)