Problem in dynamic method execution???????

Question

Hi,
I am facing the problem in selecting the method at run time.
I have a class with methods like myMethod1,myMethod2,myMethod3,myMethod4....
In my program I am receiving a parameter. for e.g. "2"
Then I want to execute myMethod2.
I am doing it this way "myMethod"+"2"+"()". But its not working .
Canany body help me out.
Thanks in Advance

Answer 1

To expand on schapel.
myObject.getClass().getMethod("myMethod2", new Class[0]).invoke(myObject, new Object[0]);will invoke the method called "myMethod2" on the Object myObject. The Class[] and Object[] arrays hold the ordered parameter types and values for the method respectively. In this case, myMethod2 is assumed to have no parameters.
Primitive parameters/return values in the reflection API are replaced by their wrapper classes. As an example, if I have a method called getInt on the class MyClass that takes a float and returns an int, then you would invoke it thus:
Integer i = new Integer(12);
Method m = MyClass.class.getMethod("getInt", new Class[]{ Float.TYPE });
Float float = (Float)m.invoke(myClassInstance, new Object[]{ i });
Float f = float.floatValue();When dynamically invoking a static method, you can supply null as the instance upon which to invoke the method