#collections #options #scala
use getOrElse() to access a value or a default when no value is present:
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Scala Optionsproduces the following result:
C:/>scalac Test.scala
C:/>scala Test
show(capitals.get( "Japan")) : Tokyo
show(capitals.get( "India")) : ?
C:/>
Using getOrElse() Method:
Following is the example of showing how to <span>use getOrElse() to access a value or a default when no value is present:
object Test {
def main(args: Array[String]) {
val a:Option[Int] = Some(5)
val b:Option[Int] = None
println("a.getOrElse(0): " + a.getOrElse(0) )
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