using parameterized ArrayList

[ebby83]

I am trying to read write <Event> objects to an ArrayList ... but when
I try to convert the arraylist back to the object arrayit gives me a
ClassCastException for the line

return (Event[]) a.toArray();


--------------------------------------
BufferedReader ois = null;
ArrayList<Event> a = new ArrayList<Event>();
try {

ois = new BufferedReader(new FileReader(this.calFile));

Event e = null;
String line;

while ((line = ois.readLine()) != null) {
e = new Event(line);
a.add(e);
}
ois.close();
} catch (FileNotFoundException e) {

e.printStackTrace();
} catch (IOException e) {

e.printStackTrace();
} catch (ParseException e) {

e.printStackTrace();
} catch (InvalidTimeRangeException e) {

e.printStackTrace();
}
if (a.isEmpty())
return null;
return (Event[]) a.toArray();

 

[Marcin Wielgus]

return (Event[]) a.toArray();

try

return (Event[]) a.toArray(new Event[0])

for more info read documentation of toArray(T[])

 

[roy2000]

return (Event[]) a.toArray();

try

return (Event[]) a.toArray(new Event[0])

or simply
return a.toArray(new Event[0])

 

[Piotr Kobzda]

return (Event[]) a.toArray();

try

return (Event[]) a.toArray(new Event[0])

or simply
return a.toArray(new Event[0])

or better:
return a.toArray(new Event[a.size()]);


piotr