这个程序为啥编译失败

Question

package mid.case9;
public class Test ｛
public static void main (String[] args){
System.out.println(A.sub(10,1);
system.out.printin(A.sub(10.0, 1.0);
}
}
class A｛
public static int sub (int a, int b) ｛
return a- b;
}
public double sub (double a, double b) {
return a-b;
}
}

Answer 1

https://blog.csdn.net/guozuofeng/article/details/84453358