2015-09-07 11:44:36 -06:00
|
|
|
// exceptions/LostMessage.java
|
2015-12-15 11:47:04 -08:00
|
|
|
// (c)2016 MindView LLC: see Copyright.txt
|
2015-11-15 15:51:35 -08:00
|
|
|
// We make no guarantees that this code is fit for any purpose.
|
2016-09-23 13:23:35 -06:00
|
|
|
// Visit http://OnJava8.com for more book information.
|
2016-01-25 18:05:55 -08:00
|
|
|
// How an exception can be lost
|
2015-06-15 17:47:35 -07:00
|
|
|
|
|
|
|
class VeryImportantException extends Exception {
|
|
|
|
@Override
|
|
|
|
public String toString() {
|
|
|
|
return "A very important exception!";
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
class HoHumException extends Exception {
|
|
|
|
@Override
|
|
|
|
public String toString() {
|
|
|
|
return "A trivial exception";
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
public class LostMessage {
|
|
|
|
void f() throws VeryImportantException {
|
|
|
|
throw new VeryImportantException();
|
|
|
|
}
|
|
|
|
void dispose() throws HoHumException {
|
|
|
|
throw new HoHumException();
|
|
|
|
}
|
|
|
|
public static void main(String[] args) {
|
|
|
|
try {
|
|
|
|
LostMessage lm = new LostMessage();
|
|
|
|
try {
|
|
|
|
lm.f();
|
|
|
|
} finally {
|
|
|
|
lm.dispose();
|
|
|
|
}
|
|
|
|
} catch(VeryImportantException |
|
|
|
|
HoHumException e) {
|
|
|
|
System.out.println(e);
|
|
|
|
}
|
|
|
|
}
|
2015-09-07 11:44:36 -06:00
|
|
|
}
|
|
|
|
/* Output:
|
2015-06-15 17:47:35 -07:00
|
|
|
A trivial exception
|
2015-09-07 11:44:36 -06:00
|
|
|
*/
|