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 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Automatically generated Scala interpreter transcript from:
 *
 * Programming in Scala (Fifth Edition)
 * by Martin Odersky, Lex Spoon, Bill Venners, and Frank Sommers
 *
 * http://booksites.artima.com/programming_in_scala_5ed
 */


scala> val someNumbers = List(-11, -10, -5, 0, 5, 10)
someNumbers: List[Int] = List(-11, -10, -5, 0, 5, 10)

scala> someNumbers.foreach((x: Int) => println(x))
-11
-10
-5
0
5
10

scala> someNumbers.filter((x: Int) => x > 0)
res1: List[Int] = List(5, 10)

scala> someNumbers.filter((x) => x > 0)
res2: List[Int] = List(5, 10)

scala> someNumbers.filter(x => x > 0)
res3: List[Int] = List(5, 10)

scala> someNumbers.filter(_ > 0)
res4: List[Int] = List(5, 10)

scala> someNumbers.filter(x => x > 0)
res5: List[Int] = List(5, 10)

scala> val f = _ + _
               ^
       error: missing parameter type for expanded function ((<x$1: error>, x$2) => x$1.$plus(x$2))
                   ^
       error: missing parameter type for expanded function ((<x$1: error>, <x$2: error>) => x$1.$plus(x$2))

scala> val f = (_: Int) + (_: Int)
f: (Int, Int) => Int = $$Lambda$785/208824749@1c23e369

scala> f(5, 10)
res6: Int = 15

scala> (x: Int) => x + more
                       ^
       error: not found: value more

scala>   def makeIncreaser(more: Int) = (x: Int) => x + more

makeIncreaser: (more: Int)Int => Int

scala> def echo(args: String*) =
         for arg <- args do println(arg)
         for arg <- args do println(arg)
             ^
On line 2: error: '(' expected but identifier found.

scala> echo()
       ^
       error: not found: value echo

scala> echo("one")
       ^
       error: not found: value echo

scala> echo("hello", "world!")
       ^
       error: not found: value echo

scala> val seq = Seq("What's", "up", "doc?")
seq: Seq[String] = List(What's, up, doc?)

scala> echo(seq)
       ^
       error: not found: value echo

scala> echo(seq*)
       ^
       error: not found: value echo
               ^
       error: value * is not a member of Seq[String]

scala>   def boom(x: Int): Int =
           if x == 0 then throw new Exception("boom!")
           else boom(x - 1) + 1

                  if x == 0 then throw new Exception("boom!")
                     ^
On line 2: error: '(' expected but identifier found.
                  if x == 0 then throw new Exception("boom!")
                            ^
On line 2: warning: then is a reserved word (since 2.10.0); usage as an identifier is deprecated

scala>  def bang(x: Int): Int =
          if x == 0 then throw new Exception("bang!")
          else bang(x - 1)

                 if x == 0 then throw new Exception("bang!")
                    ^
On line 2: error: '(' expected but identifier found.
                 if x == 0 then throw new Exception("bang!")
                           ^
On line 2: warning: then is a reserved word (since 2.10.0); usage as an identifier is deprecated