I'm using an older version of scala 2.7.5
When i try to do computations like this,
var x = 100
var x = x%1000
I get a
error: recursive variable x needs type
Is there a work around? why do i get this error?
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what are you trying to achieve there? you're declaring a new variable and initializing it with reference to itself? if shouldn't allow you to do thatKim Stebel– Kim Stebel2015-08-10 14:11:03 +00:00Commented Aug 10, 2015 at 14:11
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@KimStebel please see editscalacoder– scalacoder2015-08-10 14:11:36 +00:00Commented Aug 10, 2015 at 14:11
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For me, in addition to the error you show, it also gives the error "x is already defined as variable x"Martijn– Martijn2015-08-10 14:29:58 +00:00Commented Aug 10, 2015 at 14:29
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2 Answers
You're declaring the variable twice rather than just changing its value. Instead, do
var x = 100
x = x%1000
Comments
For anyone still wondering, in this particular case Kim Stebel already wrote the correct solution.
If you just wanted to solve the type error for var x = x%1000 the solution would be simple like this: var x:Int = x%1000 (which equals to 0, because of the default int value of the JVM, this is a really weird recursive expression though)
