made not mandatory variables lazy

upeter · upeter · commit 9efb324dcb70 · 2014-03-19T08:34:05.000+01:00
diff --git a/solutions/src/main/scala/org/scalalabs/basic/lab01/OOExercise.scala b/solutions/src/main/scala/org/scalalabs/basic/lab01/OOExercise.scala
@@ -3,7 +3,7 @@ import scala.language.implicitConversions
 abstract class Currency(val symbol: String)
 
 class Euro(val euro: Int, val cents: Int = 0) extends Currency("EUR") with Ordered[Euro]{
-  val inCents: Int = euro * 100 + cents
+  lazy val inCents: Int = euro * 100 + cents
 
   def +(other: Euro) = Euro.fromCents(inCents + other.inCents)
 
diff --git a/solutions/src/main/scala/org/scalalabs/basic/lab04/TraitExercise.scala b/solutions/src/main/scala/org/scalalabs/basic/lab04/TraitExercise.scala
@@ -60,7 +60,7 @@ class DummyService extends Loggable {
 
 trait Loggable {
   self =>
-  private val logger = SimpleLogger(self.getClass().getName())
+  private lazy val logger = SimpleLogger(self.getClass().getName())
   def debug = logger debug _
   def info = logger info _
 }

Original file line number	Diff line number	Diff line change
`@@ -60,7 +60,7 @@ class DummyService extends Loggable {`
`60`	`60`
`61`	`61`	`trait Loggable {`
`62`	`62`	`self =>`
`63`		`- private val logger = SimpleLogger(self.getClass().getName())`
	`63`	`+ private lazy val logger = SimpleLogger(self.getClass().getName())`
`64`	`64`	`def debug = logger debug _`
`65`	`65`	`def info = logger info _`
`66`	`66`	`}`