Can I catch 2 exceptions at once in kotlin like we...

# announcements

[voben]

Can I catch 2 exceptions at once in kotlin like we do in java?

// Java code
try {
    return doDangerousThing();
} catch (ExceptionA | ExceptionB e) {
    e.printStackTrace();
}

[theyann]

obvious answer : if they both implement the same interface, yes, otherwise ... it's a very good question 🙂

[E.Kisaragi]

maybe no

[thanksforallthefish]

nope: https://youtrack.jetbrains.com/issue/KT-7128

[E.Kisaragi]

i found a fun; https://discuss.kotlinlang.org/t/does-kotlin-have-multi-catch/486/16

[Erik]

No reflection required

try {
    return doDangerousThing();
} catch (t: Throwable) {
    when (t) {
        is IOException, is IllegalStateException -> t.printStackTrace()
        else -> throw t
    }
}

But the nasty part is that you have to rethrow or you'd swallow the exception.