Re: Getting an ArrayList back from ObjectInputStream (JDK1.5)
On 29 Oct 2006 01:22:29 -0700, hiwa wrote:
Here is my code:
* fetchGremlins method to read a file and provide list
* @param fileName String
* @returns ArrayList<Gremlin>
public static ArrayList<Gremlin> fetchGremlins(String fileName)
ObjectInputStream ois = new ObjectInputStream(
ArrayList<Gremlin> list = null;
list = (ArrayList<Gremlin>) ois.readObject();
catch (ClassNotFoundException ex)
// end fragment
It works, but on compiling I get the compiler warning about unchecked
or unsafe operations. I am assuming this is to do with generics in
Collection classes (ArrayList), and that the problem is the cast. Can
some kind person help me with the syntax to get rid of the warning and
have safe operations?
For generics related warning, if it is truly benign for your
application, jsut ignore it or, since Java 6, you could use
ignore warnings annotation.
Thanks for your reply. The application is working fine, so I shall
follow your advice to ignore the warning. It just seems untidy.
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