How can I dynamically load the functions of java.lang.Math

Asked Jun 14 '15 at 16:26

Active Jun 14 '15 at 16:27

Viewed 32 times

I need to dynamically load the functions of java.lang.Math and when chosenbe able to use that function.

I've tried this but it didn't work.It gives me a null pointer exception.

private static Class<Math> Math;

 for (PropertyDescriptor propertyDescriptor
                : Introspector.getBeanInfo(Math).getPropertyDescriptors()) {

            System.out.println(propertyDescriptor.getReadMethod());
        }

edited Jun 14 '15 at 16:27

Oliver Charlesworth

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asked Jun 14 '15 at 16:26

Gabriela Marinho

What gives you the NPE? – Oliver Charlesworth Jun 14 '15 at 16:30
1

Did you "load" the Math class before doing all this ..? – ring bearer Jun 14 '15 at 16:32
Just elaborating a little bit - you need to load the class (ex: using `Class.forName()`) before introspecting it. Also, you are using wrong APIs here. Use `Introspector.getBeanInfo(mathClass).getMethodDescriptors()` - The question is closed. So take cues from this comment and try. – ring bearer Jun 14 '15 at 16:43

How can I dynamically load the functions of java.lang.Math

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