diff --git a/core-scala/build.gradle b/core-scala/build.gradle deleted file mode 100644 index 05b5d5c55a..0000000000 --- a/core-scala/build.gradle +++ /dev/null @@ -1,13 +0,0 @@ -apply plugin: 'scala' - -repositories { - mavenCentral() -} - -dependencies { - compile 'org.scala-lang:scala-library:2.12.6' - testCompile 'org.scalatest:scalatest_2.12:3.0.5' - testCompile 'junit:junit:4.12' -} - - diff --git a/core-scala/build.sbt b/core-scala/build.sbt deleted file mode 100644 index 1e21f71d39..0000000000 --- a/core-scala/build.sbt +++ /dev/null @@ -1,12 +0,0 @@ -import Dependencies._ - -lazy val root = (project in file(".")). - settings( - inThisBuild(List( - organization := "com.example", - scalaVersion := "2.12.6", - version := "0.1.0-SNAPSHOT" - )), - name := "core-scala", - libraryDependencies += scalaTest % Test - ) diff --git a/core-scala/pom.xml b/core-scala/pom.xml deleted file mode 100644 index 76b6ee0d22..0000000000 --- a/core-scala/pom.xml +++ /dev/null @@ -1,111 +0,0 @@ - - 4.0.0 - core-scala - 1.0-SNAPSHOT - jar - - - com.baeldung - parent-modules - 1.0.0-SNAPSHOT - - - - 1.8 - 1.8 - UTF-8 - 2.12.6 - 2.12 - 4.2.0 - - - - - org.scala-lang - scala-library - ${scala.version} - - - - - junit - junit - 4.12 - test - - - org.scalatest - scalatest_${scala.compat.version} - 3.0.5 - test - - - org.specs2 - specs2-core_${scala.compat.version} - ${spec2.version} - test - - - org.specs2 - specs2-junit_${scala.compat.version} - ${spec2.version} - test - - - - - src/main/scala - src/test/scala - - - - net.alchim31.maven - scala-maven-plugin - 3.3.2 - - - - compile - testCompile - - - - -dependencyfile - ${project.build.directory}/.scala_dependencies - - - - - - - org.apache.maven.plugins - maven-surefire-plugin - 2.21.0 - - - true - - - - org.scalatest - scalatest-maven-plugin - 2.0.0 - - ${project.build.directory}/surefire-reports - . - TestSuiteReport.txt - - samples.AppTest - - - - test - - test - - - - - - - diff --git a/core-scala/project/Dependencies.scala b/core-scala/project/Dependencies.scala deleted file mode 100644 index 558929deb6..0000000000 --- a/core-scala/project/Dependencies.scala +++ /dev/null @@ -1,5 +0,0 @@ -import sbt._ - -object Dependencies { - lazy val scalaTest = "org.scalatest" %% "scalatest" % "3.0.5" -} diff --git a/core-scala/project/build.properties b/core-scala/project/build.properties deleted file mode 100644 index d6e35076cc..0000000000 --- a/core-scala/project/build.properties +++ /dev/null @@ -1 +0,0 @@ -sbt.version=1.1.6 diff --git a/core-scala/src/main/scala/com/baeldung/examples/ClassExamples.scala b/core-scala/src/main/scala/com/baeldung/examples/ClassExamples.scala deleted file mode 100644 index 75a37e2bab..0000000000 --- a/core-scala/src/main/scala/com/baeldung/examples/ClassExamples.scala +++ /dev/null @@ -1,31 +0,0 @@ -package com.baeldung.examples - -object ClassExamples extends App { - - import java.time._ - class Customer(val id:Int, val name:String, dob:LocalDate) { - - private var _age = calculateAge(dob) - - def age = _age // getter - def age_= (age:Int) = _age = age //setter - - private def calculateAge(dob:LocalDate) = Period - .between(dob, LocalDate.now) - .getYears - - //override def toString: String = s"(id:${id}, name:${name}, age:${age})" - } - val c = new Customer(1, "Varun Sharma", LocalDate.parse("1980-02-27")) - println(c) - - case class Address(addressLn1:String, area:String, city:String, zip:String) - - val address=Address("102, Raycon Lotus Apartment", "AECS Layout", "Bangalore", "560037") - - val anotherAddress = address.copy(addressLn1="41/2, ITPL Road") - - println(address) - println(anotherAddress) - -} diff --git a/core-scala/src/main/scala/com/baeldung/examples/CollectionExamples.scala b/core-scala/src/main/scala/com/baeldung/examples/CollectionExamples.scala deleted file mode 100644 index 1602516067..0000000000 --- a/core-scala/src/main/scala/com/baeldung/examples/CollectionExamples.scala +++ /dev/null @@ -1,22 +0,0 @@ -package com.baeldung.examples - -object CollectionExamples extends App { - - val aList = List(5, 3, 9, 2) // create a list - val sortedAscList = aList.sorted // sort ascending - val sortedDescList = aList.sortWith(_ > _) // sort descending - val evenList = aList.filter(_%2 == 0) // filter on some condition - - val mySet = Set(10, 20, 5) // create a set - val changedSet = mySet + 50 // add an element - println(changedSet) - val changedSet2 = mySet - 20 // remove an element - println(changedSet2) - - val capitals = Map("Japan" -> "Tokyo", - "England" -> "London", - "India" -> "New Delhi") // create a map - val capitalOfJapan = capitals("Japan") // get from map - println(capitalOfJapan) - -} diff --git a/core-scala/src/main/scala/com/baeldung/examples/ExceptionHandlingExamples.scala b/core-scala/src/main/scala/com/baeldung/examples/ExceptionHandlingExamples.scala deleted file mode 100644 index 16ec7ffdf4..0000000000 --- a/core-scala/src/main/scala/com/baeldung/examples/ExceptionHandlingExamples.scala +++ /dev/null @@ -1,19 +0,0 @@ -package com.baeldung.examples - -object ExceptionHandlingExamples extends App { - import java.io._ - def printLines(filename:String) = { - var reader:Option[BufferedReader] = None - try { - reader = Some(new BufferedReader(new FileReader(new File(filename)))) - reader.get.lines().forEach(println(_)) - } catch { - case e:FileNotFoundException => println(s"There was no file named ${filename}") - case e:Throwable => throw new Exception("Some error occurred", e) - } finally { - if (reader.isDefined) reader.get.close() - } - } - printLines("test.txt") - -} diff --git a/core-scala/src/main/scala/com/baeldung/examples/FirstClassFunctionExamples.scala b/core-scala/src/main/scala/com/baeldung/examples/FirstClassFunctionExamples.scala deleted file mode 100644 index bf925f59c7..0000000000 --- a/core-scala/src/main/scala/com/baeldung/examples/FirstClassFunctionExamples.scala +++ /dev/null @@ -1,17 +0,0 @@ -package com.baeldung.examples - -object FirstClassFunctionExamples extends App { - - def sum(x:Double, y:Double, f:Double => Double) = f(x) + f(y) - - println(sum(3, 4, x => x*x)) // returns 25.0 - - println(sum(3, 4, x => x*x*x)) // returns 91.0 - - println(sum(3, 4, Math.pow(_, 2))) // returns 25.0 - - def max(first:Int, second:Int) = if (first > second) first else second - - println(max(10, -2)) - -} diff --git a/core-scala/src/main/scala/com/baeldung/examples/LoopAndCalculationExamples.scala b/core-scala/src/main/scala/com/baeldung/examples/LoopAndCalculationExamples.scala deleted file mode 100644 index 17091c715d..0000000000 --- a/core-scala/src/main/scala/com/baeldung/examples/LoopAndCalculationExamples.scala +++ /dev/null @@ -1,39 +0,0 @@ -package com.baeldung.examples - -object LoopAndCalculationExamples extends App { - import CalculationUtils._ - println(sumWithWhile(Array(10, 20, 30))) - println(sumWithFor(Array(10, 20, 30))) - println(checkEvenOdd((1 to 10).toArray).toList) - println(filterEvens((1 to 10).toArray).toList) -} - -object CalculationUtils { - - def sumWithWhile(values:Array[Int]) = { - var sum = 0 - var i = 0 - while ( i < values.length) { - sum += values(i) - i+=1 - } - sum - } - - def sumWithFor(values:Array[Int]) = { - var sum = 0 - for (i <- values) { - sum += i - } - sum - } - - def checkEvenOdd(values:Array[Int]) = { - for (i <- values) yield if (i%2 == 0) "Even" else "Odd" - } - - def filterEvens(values:Array[Int]) = - for (i <- values if i%2 == 0) - yield i - -} diff --git a/core-scala/src/main/scala/com/baeldung/examples/MyApp.scala b/core-scala/src/main/scala/com/baeldung/examples/MyApp.scala deleted file mode 100644 index d0861a8727..0000000000 --- a/core-scala/src/main/scala/com/baeldung/examples/MyApp.scala +++ /dev/null @@ -1,15 +0,0 @@ -package com.baeldung.examples - -/** - * @author ${user.name} - */ -object MyApp { - - def foo(x : Array[String]) = x.foldLeft("")((a,b) => a + b) - - def main(args : Array[String]) { - println( "Hello World!" ) - println("Number of arguments passed:" + args.length) - } - -} diff --git a/core-scala/src/main/scala/com/baeldung/examples/ObjectExamples.scala b/core-scala/src/main/scala/com/baeldung/examples/ObjectExamples.scala deleted file mode 100644 index 29db276ebd..0000000000 --- a/core-scala/src/main/scala/com/baeldung/examples/ObjectExamples.scala +++ /dev/null @@ -1,23 +0,0 @@ -package com.baeldung.examples - -object ObjectExamples extends App { - - import java.time._ - class Customer(val id:Int, val name:String, private var _age:Int) { - def age = this._age - def age_= (age:Int) = _age = age - } - object Customer { - def apply(id:Int, name:String, age:Int) = new Customer(id, name, age) - - def apply(id:Int, name:String, dob:LocalDate) = { - val p = Period.between(dob, LocalDate.now) - new Customer(id, name, p.getYears) - } - } - val c = Customer(1, "Varun Sharma", LocalDate.parse("1980-02-27")) - - c.age = 20 - println(c.age) - -} diff --git a/core-scala/src/main/scala/com/baeldung/examples/OptionExample.scala b/core-scala/src/main/scala/com/baeldung/examples/OptionExample.scala deleted file mode 100644 index b0d49af758..0000000000 --- a/core-scala/src/main/scala/com/baeldung/examples/OptionExample.scala +++ /dev/null @@ -1,12 +0,0 @@ -package com.baeldung.examples - -object OptionExample extends App { - - def minimumEvenNumber(data:Array[Int]) = { - val evens = data.filter(_%2 == 0) - if (evens.isEmpty) None else Some(evens.min) - } - - val minEven = minimumEvenNumber(Array(21, 3, 11, 7)).getOrElse(0) - println(minEven) -} diff --git a/core-scala/src/main/scala/com/baeldung/examples/PatternMatchingExample.scala b/core-scala/src/main/scala/com/baeldung/examples/PatternMatchingExample.scala deleted file mode 100644 index d476bed60b..0000000000 --- a/core-scala/src/main/scala/com/baeldung/examples/PatternMatchingExample.scala +++ /dev/null @@ -1,22 +0,0 @@ -package com.baeldung.examples - -object PatternMatchingExample extends App { - - abstract class Item - case class Book(title:String, author:String, price:Double) extends Item - case class MusicCD(title:String, genre:String, price:Double) extends Item - - def describe(item:Item) = item match { - - case b:Book if b.price > 1000 => println(s"The book ${b.title} is expensive") - - case b:Book => println(s"The book ${b.title} is written by ${b.author}.") - - case MusicCD(title, "Jazz", _) => println(s"This is a CD of Jazz music.") - - case _ => println("Unknown Item") - - } - - describe(Book("Half Girlfriend", "Chetan Bhagat", 100)) -} diff --git a/core-scala/src/main/scala/com/baeldung/examples/TraitExample.scala b/core-scala/src/main/scala/com/baeldung/examples/TraitExample.scala deleted file mode 100644 index 0775a2bac2..0000000000 --- a/core-scala/src/main/scala/com/baeldung/examples/TraitExample.scala +++ /dev/null @@ -1,23 +0,0 @@ -package com.baeldung.examples - -import java.io._ - -object TraitExample extends App { - - trait Loggable { - val logger:PrintStream - def getPrefix():String - def log(message:String) = logger.println(s"[${getPrefix()}]:${message}") - } - object CustomerService extends Loggable { - override val logger = System.out - override def getPrefix(): String = "CustomerService" - def retrieve(id:String) = { - log(s"Retrieve with id ${id} called") - // Code to retrieve Customer from DB - } - } - - CustomerService.retrieve("C100") - -} diff --git a/core-scala/src/main/scala/com/baeldung/examples/TupleExamples.scala b/core-scala/src/main/scala/com/baeldung/examples/TupleExamples.scala deleted file mode 100644 index e9ffbd0aca..0000000000 --- a/core-scala/src/main/scala/com/baeldung/examples/TupleExamples.scala +++ /dev/null @@ -1,18 +0,0 @@ -package com.baeldung.examples - -object TupleExamples extends App { - - val empSal:(String, Int) = ("David", 10000) - - def getMaxMinSalary(empSal:Array[(String, Int)]) = { - val minEmpSal = empSal.minBy(empSal => empSal._2) - val maxEmpSal = empSal.maxBy(empSal => empSal._2) - (maxEmpSal._2, minEmpSal._2) - } - val empSalArr = Array(("David", 12000), ("Maria", 15000), - ("Elisa", 11000), ("Adam", 8000)) - - val (maxSalary, minSalary) = getMaxMinSalary(empSalArr) - println("Max Salary: " + maxSalary + " and Min Salary: " + minSalary) - -} diff --git a/core-scala/src/main/scala/com/baeldung/examples/VariableDeclaration.scala b/core-scala/src/main/scala/com/baeldung/examples/VariableDeclaration.scala deleted file mode 100644 index 6050b4f908..0000000000 --- a/core-scala/src/main/scala/com/baeldung/examples/VariableDeclaration.scala +++ /dev/null @@ -1,24 +0,0 @@ -package com.baeldung.examples - -object VariableDeclaration extends App { - - val x:Int = 0 - var friend:String = "David" - lazy val greet = "Hello" + friend - val data = Array(2, 4, 5) - - printHelloWorld() - println(sum(10, 20)) - - def printHelloWorld():Unit = { - println("Hello World") - } - - def sum(x:Int, y:Int) = x + y - - def sayGreeting(to:String, greet:String="Hi", message:String = "How are you?") = println(greet + " " + to + ", " + message) - - sayGreeting(to="David", message="How are you doing?") - sayGreeting(greet="Hello", to="Maria") - -} diff --git a/core-scala/src/test/scala/samples/junit.scala b/core-scala/src/test/scala/samples/junit.scala deleted file mode 100644 index 89513d5bbc..0000000000 --- a/core-scala/src/test/scala/samples/junit.scala +++ /dev/null @@ -1,17 +0,0 @@ -package samples - -import org.junit._ -import Assert._ - -@Test -class AppTest { - - @Test - def testOK() = assertTrue(true) - -// @Test -// def testKO() = assertTrue(false) - -} - - diff --git a/core-scala/src/test/scala/samples/scalatest.scala b/core-scala/src/test/scala/samples/scalatest.scala deleted file mode 100644 index bd10412199..0000000000 --- a/core-scala/src/test/scala/samples/scalatest.scala +++ /dev/null @@ -1,108 +0,0 @@ -/* - * Copyright 2001-2009 Artima, Inc. - * - * 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. - */ -package samples - -/* -ScalaTest facilitates different styles of testing by providing traits you can mix -together to get the behavior and syntax you prefer. A few examples are -included here. For more information, visit: - -http://www.scalatest.org/ - -One way to use ScalaTest is to help make JUnit or TestNG tests more -clear and concise. Here's an example: -*/ -import scala.collection._ -import org.scalatest.Assertions -import org.junit.Test - -class StackSuite extends Assertions { - - @Test def stackShouldPopValuesIinLastInFirstOutOrder() { - val stack = new mutable.ArrayStack[Int] - stack.push(1) - stack.push(2) - assert(stack.pop() === 2) - assert(stack.pop() === 1) - } - - @Test def stackShouldThrowRuntimeExceptionIfAnEmptyArrayStackIsPopped() { - val emptyStack = new mutable.ArrayStack[String] - intercept[RuntimeException] { - emptyStack.pop() - } - } -} - -/* -Here's an example of a FunSuite with Matchers mixed in: -*/ -import org.scalatest.FunSuite -import org.scalatest.Matchers - -import org.junit.runner.RunWith -import org.scalatest.junit.JUnitRunner -@RunWith(classOf[JUnitRunner]) -class ListSuite extends FunSuite with Matchers { - - test("An empty list should be empty") { - List() should be ('empty) - Nil should be ('empty) - } - - test("A non-empty list should not be empty") { - List(1, 2, 3) should not be ('empty) - List("fee", "fie", "foe", "fum") should not be ('empty) - } - - test("A list's length should equal the number of elements it contains") { - List() should have length (0) - List(1, 2) should have length (2) - List("fee", "fie", "foe", "fum") should have length (4) - } -} - -/* -ScalaTest also supports the behavior-driven development style, in which you -combine tests with text that specifies the behavior being tested. Here's -an example whose text output when run looks like: - -A Map -- should only contain keys and values that were added to it -- should report its size as the number of key/value pairs it contains -*/ -import org.scalatest.FunSpec - -class ExampleSpec extends FunSpec { - - describe("An ArrayStack") { - - it("should pop values in last-in-first-out order") { - val stack = new mutable.ArrayStack[Int] - stack.push(1) - stack.push(2) - assert(stack.pop() === 2) - assert(stack.pop() === 1) - } - - it("should throw RuntimeException if an empty array stack is popped") { - val emptyStack = new mutable.ArrayStack[Int] - intercept[RuntimeException] { - emptyStack.pop() - } - } - } -} diff --git a/core-scala/src/test/scala/samples/specs.scala b/core-scala/src/test/scala/samples/specs.scala deleted file mode 100644 index 9e4dfe93bb..0000000000 --- a/core-scala/src/test/scala/samples/specs.scala +++ /dev/null @@ -1,31 +0,0 @@ -package samples - -import org.junit.runner.RunWith -import org.specs2.mutable._ -import org.specs2.runner._ - - -/** - * Sample specification. - * - * This specification can be executed with: scala -cp ${package}.SpecsTest - * Or using maven: mvn test - * - * For more information on how to write or run specifications, please visit: - * http://etorreborre.github.com/specs2/guide/org.specs2.guide.Runners.html - * - */ -@RunWith(classOf[JUnitRunner]) -class MySpecTest extends Specification { - "The 'Hello world' string" should { - "contain 11 characters" in { - "Hello world" must have size(11) - } - "start with 'Hello'" in { - "Hello world" must startWith("Hello") - } - "end with 'world'" in { - "Hello world" must endWith("world") - } - } -} diff --git a/core-scala/test.txt b/core-scala/test.txt deleted file mode 100644 index da431d2039..0000000000 --- a/core-scala/test.txt +++ /dev/null @@ -1,4 +0,0 @@ -Hi, -This is the lines -from the test file. -Thanks. \ No newline at end of file