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scalainheritancehierarchysubtype

When will scala ever return Any?

I was following the scala course from coursera taught Martin Odersky. He was giving some brilliant examples about return types and one thing puzzled me:

if(true) 1 else false // return AnyVal as this is the closest subtype of both primitive types

I assume that the following:

if(true) Tweet.comment("hello") else String("Hello") // I assume that this code will return AnyRef

However when will scala ever return Any? Will it ever return Any?

Solution

  • I don't know Scala, but based on your examples,

    if(true) 1 else "hello"

    should probably do the trick.