java - 重写方法中参数的泛型

Question

我是否以错误的方式使用泛型？抱歉，我是泛型新手。

public interface Stream {
 public <T extends InputStream> void read(T in);
}

public class StreamReader implements Stream {
  @Override
 public <T extends InputStream> void read(T in) {
   ByteInputStream bis = (ByteInputStream) in;
   ...
}

Answer 1

我认为您正在寻找这个:

public interface Stream<T extends InputStream> {
    public void read(T in);
}

public class StreamReader implements Stream<ByteArrayInputStream> {

    @Override public void read(ByteArrayInputStream in) {
        ...
    }
}