i found http://fasterxml.github.io/jackson-databind/javadoc/2.7/com/fasterxml/jackson/databind/ObjectMapper.html#readTree(java.lang.String) ! This is very acurately what i needed

hi all! is it true that write new mobile app in kotlin is faster then in java? tnx

no. they're the same within a reasonable margin of error.

well, the development is.

is there any intent to add the ability to assign any character as an operator?

also, i've been coding around this issue for a bit because it never really felt all that pressing, and a quick google search was giving me nothing. Is there an issue with my libraries or something?

Cannot choose among the following candidates without completing type inference:

public fun <T> arrayListOf(vararg elements: Any): kotlin.collections.ArrayList<Any> /* = java.util.ArrayList<Any> */ defined in kotlin.collections
public fun <T> arrayListOf(vararg elements: Int): kotlin.collections.ArrayList<Int> defined in kotlin.collections

the code:

val b: Int = 1
val a: ArrayList<Any> = arrayListOf(b)

though the classes don't seem to matter

your code snippet seems to compile and run fine for me

it's the function

arrayListOf

.

listOf

works fine

yeah, and i only get it on one of my machines, but it's my main coding machien

Our app seems to be compiling extremely slowly. Using

mci -X -Dkotlin.compiler.incremental=true

and the buildtime plugin, I'm able to see that our current compile time is on the order of minutes. Previously I thought this was the time to run our SpringBootTests (which makes sense), but for this to be compile time is absolutely terrible. We've got about 100300 lines of kotlin in this project so I know it's not going to be blazing fast, but this seems out of the norm.

@snowe uploaded a file: Buildtime plugin results

Hmm, that might not be an issue solveable just yet. Maybe after Java 11 is fully released, JetBrains may add support for it.

Question: Why does

Number

not define math operations like plus/minus etc. with result of

Number

? it could just look at the largest of the two parameters (Long > Double > Long, BD > Double) and produce that type

What would you do with such a number?

output?

think you get messy numeric input from somewhere

adn just want to compute sums / averages etc

I think it would be benefitial to first convert to a uniform type and then work with that. E.g. convert everything to

Double

.

Otherwise you would get unpredictable results.

But there's nothing you can really call on the

Number

type, except for

.toX

, in which case you should have just called

.toX

on the operands.

You can still call toString(). I was just looking at it for an example for filterInstance() + an reduce on that which would have been nicer if there was

+*-/

on Number 🙂

What if you get in only

Int

and then you compute the sum. Suddenly you can't go up as high because you are just working on Ints. There are just bugs lurking everywhere

Actually there's no way to do this, since things like

BigInteger

and

BigDecimal

and

MyCustomNumber

implement

Number

too, and there's no way to quantify which of them is largest.

Isn't BigDecimal > BigInteger in terms of scope?

MyCustomNumber would indeed be a problem 🙂

But what about

MyCustomNumber

? Or

BobsAwesomeGreatNumberImplementation

? 😄

don#t worry was just curious