public class Example7_1 {
    public static void main(String[] args) {
        RedCowForm from=new RedCowForm("红牛农场");
        from.showCoeMess();
        from.cow.speak();
        RedCowForm.RedCow redCow=new RedCowForm.RedCow(180,119,6000);
        redCow.speak();
    }
}