我看到了一段代码,其中接口声明了一个异常但是实现它的类既没有抛出也没有捕获这个异常,这是为什么?在Java中这样做是否合法或安全?
import java.rmi.*;
public interface MyRemote extends Remote {
public String sayHello() throws RemoteException;
}
import java.rmi.*;
import java.rmi.server.*;
public class MyRemoteImpl extends UnicastRemoteObject implements MyRemote{
public String sayHello() {
return "Server says, 'Hey'";
}
public MyRemoteImpl() throws RemoteException {}
public static void main (String[] args) {
try {
MyRemote service = new MyRemoteImpl();
Naming.rebind("RemoteHello", service);
} catch(Exception ex)
{
ex.printStackTrace();
}
}
}