Fun exercise:
val m = Map(1->"a",2->"b",3->"c")
val field = m(1).getClass.getDeclaredField("value")
field.setAccessible(true)
val mods = field.getClass.getDeclaredField("modifiers")
mods.setAccessible(true)
mods.setInt(field, field.getModifiers & ~java.lang.reflect.Modifier.FINAL)
field.set(m(1), other.get(m(2)))
println(m)
// => Map(1 -> b, 2 -> b, 3 -> c)
2011/11/25 Cédric Beust ♔ <[email protected]>:
>
>
> On Thu, Nov 24, 2011 at 5:11 PM, Kevin Wright <[email protected]>
> wrote:
>>
>> Otherwise, it's semantics. method params are immutable
>
> Same as Java.
>
>>
>> unless, the standard keyword for values is "val"
>
> And "var" for variables, with Scala not encouraging either over the other.
>
>>
>> (equivalent to final in Java), and collections in the standard library
>
> They are collections, so irrelevant since we're talking about the language.
> Like I said, we already went through this.
> --
> Cédric
>
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