import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.Random;
public class Main {
public static void main(String[] args) throws IllegalAccessException {
Random r = new Random();
System.out.print(spyFields(r));
r.nextInt();
System.out.println("\nAfter calling nextInt:\n");
System.out.print(spyFields(r));
}
public static String spyFields(Object obj) throws IllegalAccessException {
StringBuffer buffer = new StringBuffer();
Field[] fields = obj.getClass().getDeclaredFields();
for (Field f : fields) {
if (!Modifier.isStatic(f.getModifiers())) {
f.setAccessible(true);
Object value = f.get(obj);
buffer.append(f.getType().getName());
buffer.append(" ");
buffer.append(f.getName());
buffer.append("=");
buffer.append("" + value);
buffer.append("\n");
}
}
return buffer.toString();
}
}