class man { int age;//都应该改为protected int age int high; String name; String hello(){ return "hello,i am"+name; } }
这样就没问题了,毛病自己总结吧 public class test{ public static void main(String[] args){ chinese me=new chinese(); me.age=2; me.high=173; me.name="caoji"; me.courty="china"; System.out.println("我的年龄是"+me.age+",我的身高是"+me.high+",我的名字是"+me.name+",我来之"+me.courty); } } class man { int age; int high; String name; String hello(){ return "hello,i am"+name; } } class chinese extends man { String courty; }
int age;//都应该改为protected int age
int high;
String name;
String hello(){
return "hello,i am"+name;
}
}
public class test{
public static void main(String[] args){
chinese me=new chinese();
me.age=2;
me.high=173;
me.name="caoji";
me.courty="china";
System.out.println("我的年龄是"+me.age+",我的身高是"+me.high+",我的名字是"+me.name+",我来之"+me.courty);
}
}
class man {
int age;
int high;
String name;
String hello(){
return "hello,i am"+name;
}
}
class chinese extends man
{
String courty;
}
我运行的一切正常