Code Snippets: Using java.lang.reflect.* APIs

import java.lang.reflect.*;

public class ReflectionExample {

    public static void main(String args[])
            throws 
            ClassNotFoundException, InstantiationException,
            IllegalAccessException, NoSuchMethodException, 
            InvocationTargetException

    {
        ClassLoader j = ClassLoader.getSystemClassLoader();
        Class someClass = j.loadClass("GlobalVillage");
        Object instanceOfSomething =  someClass.newInstance();

        // the second parameter specifies the type of the argument(s) passed to method
        Method aMethod = someClass.getMethod("showMessage", new Class[]{String.class});

        //Here value of the argument of the method is provided
        Object returnValue = aMethod.invoke(instanceOfSomething, "The whole world is like a family.");

        System.out.println("Show message says : " + returnValue); 

    }

}

class GlobalVillage {
    public String showMessage(String strMessage) {
        
        return strMessage; // isn't this true??
    }
}