How to call a function of class from a different class using reflection in JAVA?

Question

import org.apache.commons.beanutils.MethodUtils;
public class subscriber
{
    public calculator cal=new calculator();
    String funcName = "";
    int result;
    public void getValues(String strfuncName)
    {
            funcName= strfuncName; //has the function name of class calculator

    }

    public void giveResult()
    {
            result=cal.funcName();
     //i want it to call the function whose name is stored in funcName
    }
}

How do i do this using the reflection and
importing org.apache.commons.beanutils.MethodUtils
And as the function call can be dynamic that is any of the function can be called I cannot predefine it.

Answer 1

Method method = obj.getClass().getMethod("Methodname", new Class[] {});
String output = (String) method.invoke(obj, new Object[] {}); // String return type here, Sorry i mean yourType is your return type..