Dart
xxxxxxxxxx
class FoodSpoiledError extends StateError {
FoodSpoiledError(String msg) : super(msg);
}
class Potato {
int age;
Potato(this.age);
String peel() {
if (age > 4) {
throw new FoodSpoiledError('your potato is spoiled');
}
return "peeled";
}
}
main() {
var p = new Potato(7);
try {
p.peel();
} on FoodSpoiledError catch(_) {
print("nope nope nope");
}
try {
throw("potato");
} catch(_) {
print("caught a flying potato");
}
p.peel();
print('not reached');
}
$ dart exceptions.dart nope nope nope caught a flying potato Unhandled exception: Bad state: your potato is spoiled
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