[英]JAVA: override interface method
I have interface: 我有界面:
interface operations{
void sum();
}
and I want to have classes: 我想要上课:
class matrix implements operations {
@override
void sum(matrix m) {
}
}
class vector3D implements operations {
@override
void sum(vecor3D v) {
}
}
How to do this? 这该怎么做? I tried something like this: 我试过这样的事情:
interface operations < T > {
<T> void sum(T t);
}
class matrix implements operations<matrix>{
@Override
void sum(matrix m){};
}
}
class vector3D implements operations<vector3D>{
@Override
void sum(vector3D v){};
}
but it doesn't work. 但它不起作用。
Don't add a type parameters to the interface and the type. 不要在接口和类型中添加类型参数。 Also you should specify the generic parameters of the interface you implement: 您还应该指定实现的接口的通用参数:
interface operations<T> {
void sum(T t);
}
class matrix implements operations<matrix> {
@Override
public void sum(matrix m){
}
}
class vector3D implements operations<vecor3D> {
@Override
public void sum(vecor3D v){
}
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.