执行下面的程序时,我得到错误信息为 “错误:在Parent_Package.Parent类中找不到主要方法,请定义主要方法如下: public static void main(String [] args)“.................. 任何人都可以知道如何解决这个问题吗?错误:请定义主要方法为:public static void main(String [] args)
First Package
==============
package Parent_Package;
public class Parent {
int money = 100;enter code here
protected void give_Money(){
money = money-10;
System.out.println(money);
}
}
======================
Second Package
===================================
package Child_Package;
import Parent_Package.Parent;
class Child extends Parent{
public void donate() {
give_Money();
}
}
class Friend {
public static void main(String[] args){
Child c = new Child();
c.donate();
}
}
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