program to retrieve the information of variables of a class

import java.lang.reflect.*;
public class Refl7 
{
	public static void main(String args[]) throws Exception
	{
		Class cls= Class.forName(args[0]);
		Field first[]=cls.getDeclaredFields();
		for(int i=0;i<first.length;i++)
		{
			Field f=first[i];
			System.out.println("Name"+f.getName());
			System.out.println("classname"+f.getDeclaringClass());
			System.out.println("Type"+f.getType());
			int mod=f.getModifiers();
			System.out.println("Modifiers="+Modifier.toString(mod));
			System.out.println("------");
		}
	}

}