Removed sections

Advanced Topics/Erasure & Reification/Examples/src/ErasedTypeEquivalence.kt

@@ -1,8 +0,0 @@
-// Erasure/ErasedTypeEquivalence.kt
-import atomictest.eq
-
-fun main() {
-  val c1 = listOf<String>()::class
-  val c2 = listOf<Int>()::class
-  c1 eq c2
-}

Advanced Topics/Erasure & Reification/Examples/src/TypeOfT.kt

@@ -1,22 +0,0 @@
-// Erasure/TypeOfT.kt
-package generics
-import atomictest.eq
-
-fun <T> typeOfT(arg: T) =
-  "$arg: " + when(arg) {
-  is Car    -> "Car"
-  is Int    -> "Int"
-  is String -> "String"
-  else      -> "${(arg?:"")::class}"
-}
-
-data class Alien(
-  val n:String = "Pibbles")
-
-fun main() {
-  typeOfT(Car()) eq "Car(name=Car): Car"
-  typeOfT(1) eq "1: Int"
-  typeOfT("Morty") eq "Morty: String"
-  typeOfT(Alien()) eq
-    "Alien(n=Pibbles): class generics.Alien"
-}

Advanced Topics/Erasure & Reification/Examples/task-info.yaml

@@ -1,6 +0,0 @@
-type: theory
-files:
-- name: src/ErasedTypeEquivalence.kt
-  visible: true
-- name: src/TypeOfT.kt
-  visible: true

Advanced Topics/Erasure & Reification/Examples/task.md

@@ -1,3 +0,0 @@
-## Erasure & Reification
-
-Examples accompanying the atom.

Advanced Topics/Erasure & Reification/lesson-info.yaml

@@ -1,2 +0,0 @@
-content:
-- Examples

Advanced Topics/Reflection/Examples/src/Info.kt

@@ -1,30 +0,0 @@
-// Reflection/Info.kt
-
-fun info(a: Any) {
-  val kc = a::class
-  println("${kc::class}")
-  kc::class.supertypes.forEach {
-    println("$it")
-  }
-  println("---")
-  kc::class.members.forEach { println("$it") }
-  println("===")
-  println("simpleName: ${kc.simpleName}")
-  println(
-    "qualifiedName: ${kc.qualifiedName}")
-  println("Constructors:")
-  kc.constructors.forEach { println("$it") }
-  println("Members:")
-  kc.members.forEach { println("  $it") }
-  println("Super Types:")
-  kc.supertypes.forEach { println("  $it") }
-  println("isData: ${kc.isData}")
-}
-
-data class Baz(val i: Int, val s: String) {
-  constructor(): this(11, "Joy")
-}
-
-fun main() {
-  info(Baz(1, "Happy"))
-}

Advanced Topics/Reflection/Examples/src/Name.kt

@@ -1,5 +0,0 @@
-// Reflection/Name.kt
-package reflection
-
-fun className(a: Any): String =
-  a::class.simpleName ?: ""

Advanced Topics/Reflection/Examples/src/Solid.kt

@@ -1,17 +0,0 @@
-// Reflection/Solid.kt
-import atomictest.eq
-import reflection.className
-
-class Solid {
-  override fun toString() = className(this)
-}
-
-class Solid2(val size: Int) {
-  override fun toString() =
-    "${className(this)}($size)"
-}
-
-fun main() {
-  Solid() eq "Solid"
-  Solid2(47) eq "Solid2(47)"
-}

Advanced Topics/Reflection/Examples/task-info.yaml

@@ -1,8 +0,0 @@
-type: theory
-files:
-- name: src/Name.kt
-  visible: true
-- name: src/Solid.kt
-  visible: true
-- name: src/Info.kt
-  visible: true

Advanced Topics/Reflection/Examples/task.md

@@ -1,3 +0,0 @@
-## Reflection
-
-Examples accompanying the atom.

Advanced Topics/Reflection/lesson-info.yaml

@@ -1,2 +0,0 @@
-content:
-- Examples

Advanced Topics/Variance & Star Projections/Examples/src/Bird.kt

@@ -1,22 +0,0 @@
-// Variance/Bird.kt
-package variance
-import atomictest.eq
-
-open class Bird
-open class Duck: Bird()
-class Mallard: Duck()
-
-open class MakeBird {
-  open fun make(): Bird = Bird()
-}
-
-fun test(maker: MakeBird, result: String) {
-  val bird = maker.make()
-  val name = bird::class.simpleName ?: ""
-  name eq result
-}
-
-fun main() {
-  test(MakeBird(), "Bird")
-  val b: Bird = MakeBird().make()
-}

Advanced Topics/Variance & Star Projections/Examples/src/Contravariance.kt

@@ -1,28 +0,0 @@
-// Variance/Contravariance.kt
-package variance
-import atomictest.eq
-
-open class Base {
-  open fun f(b: Mallard) = "Base::f"
-}
-
-open class Derived: Base() {
-  /* override */ fun f(b: Duck) =
-    "Derived::f"
-}
-
-class Derived2: Derived() {
-  /* override */ fun f(b: Bird) =
-    "Derived2::f"
-}
-
-fun main() {
-  Derived2().f(Mallard()) eq "Base::f"
-  Derived2().f(Duck()) eq "Derived::f"
-  Derived2().f(Bird()) eq "Derived2::f"
-
-  Derived().f(Mallard()) eq "Base::f"
-  Derived().f(Duck()) eq "Derived::f"
-
-  Base().f(Mallard()) eq "Base::f"
-}

Advanced Topics/Variance & Star Projections/Examples/src/CovariantReturnTypes.kt

@@ -1,29 +0,0 @@
-// Variance/CovariantReturnTypes.kt
-package variance
-
-open class MakeDuck2: MakeBird() {
-  override fun make(): Duck = Duck()
-}
-
-class MakeMallard2: MakeDuck2() {
-  override fun make(): Mallard = Mallard()
-}
-
-class Bicycle
-
-class MakeBicycle: MakeBird() {
-  // Fails:
-  // override fun make(): Bicycle = Bicycle()
-  val errorMessage = """
-  Return type of 'make' is not a subtype of
-  the return type of the overridden member
-  'public open fun make(): Bird'
-  """
-}
-
-fun main() {
-  test(MakeDuck2(), "Duck")
-  test(MakeMallard2(), "Mallard")
-  val d: Duck = MakeDuck2().make()
-  val m: Mallard = MakeMallard2().make()
-}

Advanced Topics/Variance & Star Projections/Examples/src/SameReturnTypes.kt

@@ -1,18 +0,0 @@
-// Variance/SameReturnTypes.kt
-package variance
-
-open class MakeDuck1: MakeBird() {
-  override fun make(): Bird = Duck()
-}
-
-class MakeMallard1: MakeDuck1() {
-  override fun make(): Bird = Mallard()
-}
-
-fun main() {
-  test(MakeDuck1(), "Duck")
-  test(MakeMallard1(), "Mallard")
-  val d: Duck = MakeDuck1().make() as Duck
-  val m: Mallard =
-    MakeMallard1().make() as Mallard
-}

Advanced Topics/Variance & Star Projections/Examples/task-info.yaml

@@ -1,10 +0,0 @@
-type: theory
-files:
-- name: src/Bird.kt
-  visible: true
-- name: src/SameReturnTypes.kt
-  visible: true
-- name: src/CovariantReturnTypes.kt
-  visible: true
-- name: src/Contravariance.kt
-  visible: true

Advanced Topics/Variance & Star Projections/Examples/task.md

@@ -1,3 +0,0 @@
-## Variance & Star Projections
-
-Examples accompanying the atom.

Advanced Topics/Variance & Star Projections/lesson-info.yaml

@@ -1,2 +0,0 @@
-content:
-- Examples

Advanced Topics/section-info.yaml

@@ -1,4 +0,0 @@
-content:
-- Variance & Star Projections
-- Erasure & Reification
-- Reflection

Concurrency/Coroutines/Examples/src/CompareDelayingTask.kt

@@ -1,41 +0,0 @@
-// Coroutines/CompareDelayingTask.kt
-import atomictest.eq
-import kotlinx.coroutines.*
-import kotlin.system.measureTimeMillis
-
-suspend fun task(): Int {
-  delay(1000L) // Performing work...
-  return 111   // Result of work
-}
-
-fun sequentialTasks() = runBlocking<Double> {
-  measureTimeMillis {
-    val result =
-      List(5) { task() }.sumBy { it }
-    result eq 555
-  }.toDouble()
-}
-
-fun parallelTasks() = runBlocking<Double> {
-  measureTimeMillis {
-    val result =
-      List(5) { async { task() } }
-        .sumBy { it.await() }
-    result eq 555
-  }.toDouble()
-}
-
-// Simple round to two decimal places:
-fun round2dp(d: Double) =
-  Math.round(d * 100) / 100.0
-
-fun main() {
-  val seq = sequentialTasks()
-  val par = parallelTasks()
-  println("Ratio: ${round2dp(seq / par)}")
-}
-/* Sample output:
-555
-555
-Ratio: 4.88
-*/

Concurrency/Coroutines/Examples/src/CompareSlowFib.kt

@@ -1,53 +0,0 @@
-// Coroutines/CompareSlowFib.kt
-import bigint.*
-import kotlinx.coroutines.*
-import kotlin.system.measureTimeMillis
-
-// Slow Fibonacci function:
-fun fibs(n: BigInt): BigInt {
-  assert(n >= zero)
-  return when (n) {
-    zero -> zero
-    one -> one
-    else -> fibs(n - one) + fibs(n - two)
-  }
-}
-
-fun sequentialFibs(): Double {
-  val results = Array<BigInt>(3, { zero })
-  return measureTimeMillis {
-    results[0] = fibs(36.big)
-    results[1] = fibs(37.big)
-    results[2] = fibs(38.big)
-  }.toDouble()
-}
-
-fun parallelFibs() = runBlocking<Double> {
-  val results = Array<BigInt>(3, { zero })
-  measureTimeMillis {
-    val a = launch {
-      results[0] = fibs(36.big)
-    }
-    val b = launch {
-      results[1] = fibs(37.big)
-    }
-    val c = launch {
-      results[2] = fibs(38.big)
-    }
-    a.join()
-    b.join()
-    c.join()
-  }.toDouble()
-}
-
-fun main() {
-  val seq = sequentialFibs()
-  val par = parallelFibs()
-  println("Ratio: ${round2dp(seq / par)}")
-}
-/* Sample output: (2 core machine)
-Ratio: 1.68
-*/
-/* Sample output: (4 core machine)
-Ratio: 1.94
-*/

Concurrency/Coroutines/Examples/src/FibonacciSequence.kt

@@ -1,16 +0,0 @@
-// Coroutines/FibonacciSequence.kt
-import atomictest.eq
-import bigint.*
-import kotlin.coroutines.*
-
-fun main() {
-  val fibonacciSeq = sequence {
-    var n = Pair(zero, one)
-    while (true) {
-      yield(n.first)
-      n = Pair(n.second, n.first + n.second)
-    }
-  }
-  fibonacciSeq.take(101).last() eq
-    "354224848179261915075".big
-}

Concurrency/Coroutines/Examples/src/HelloCoroutines.kt

@@ -1,16 +0,0 @@
-// Coroutines/HelloCoroutines.kt
-import kotlinx.coroutines.*
-
-fun main() =
-  runBlocking<Unit> {
-    val coroutine = launch {
-      delay(10)
-      println("Hello,")
-    }
-    println("World!")
-    coroutine.join()
-  }
-/* Output:
-World!
-Hello,
-*/

Concurrency/Coroutines/Examples/src/LaunchMany.kt

@@ -1,16 +0,0 @@
-// Coroutines/LaunchMany.kt
-import kotlinx.coroutines.*
-
-fun main() =
-  runBlocking<Unit> {
-    val jobs = List(19) {
-      launch {
-        delay(1000)
-        print("$it ")
-      }
-    }
-    jobs.forEach { it.join() }
-  }
-/* Sample output:
-6 1 10 7 2 4 9 12 13 14 15 17 16 18 3 0 5 11 8
-*/

Concurrency/Coroutines/Examples/src/LaunchManyTimed.kt

@@ -1,21 +0,0 @@
-// Coroutines/LaunchManyTimed.kt
-import kotlinx.coroutines.*
-import kotlin.system.measureTimeMillis
-
-fun main() =
-  runBlocking<Unit> {
-    val duration = measureTimeMillis {
-      val jobs = List(19) {
-        launch {
-          delay(1000)
-          print("$it ")
-        }
-      }
-      jobs.forEach { it.join() }
-    }
-    println("\nDuration: $duration")
-  }
-/* Sample output:
-4 6 0 3 1 5 2 8 10 13 14 16 17 18 11 12 7 9 15
-Duration: 1020
-*/

Concurrency/Coroutines/Examples/src/LazySequence.kt

@@ -1,15 +0,0 @@
-// Coroutines/LazySequence.kt
-import atomictest.eq
-import kotlin.coroutines.*
-
-val items = listOf(
-  1, 19, 34, 22, 97, 11, 72)
-
-fun main() {
-  val squares = sequence {
-    for (n in items)
-      yield(n * n)
-  }
-  squares.toList() eq
-    "[1, 361, 1156, 484, 9409, 121, 5184]"
-}

Concurrency/Coroutines/Examples/task-info.yaml

@@ -1,16 +0,0 @@
-type: theory
-files:
-- name: src/HelloCoroutines.kt
-  visible: true
-- name: src/LaunchMany.kt
-  visible: true
-- name: src/LaunchManyTimed.kt
-  visible: true
-- name: src/CompareDelayingTask.kt
-  visible: true
-- name: src/CompareSlowFib.kt
-  visible: true
-- name: src/LazySequence.kt
-  visible: true
-- name: src/FibonacciSequence.kt
-  visible: true

Concurrency/Coroutines/Examples/task.md

@@ -1,3 +0,0 @@
-## Coroutines
-
-Examples accompanying the atom.

Concurrency/Coroutines/lesson-info.yaml

@@ -1,2 +0,0 @@
-content:
-- Examples

Concurrency/async and await/Examples/src/TeaPartyTexting.kt

@@ -1,34 +0,0 @@
-// asyncandawait/TeaPartyTexting.kt
-package asyncandawait
-
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.async
-import kotlinx.coroutines.delay
-import kotlinx.coroutines.runBlocking
-
-fun main() = runBlocking(Dispatchers.Default) {
-  val marchHare = async {
-    println("Can you bring the cake?")
-    delay(3000)
-    println("Yes, I can bring the cake!")
-    "cake"
-  }
-  val madHatter = async {
-    println("Can you bring the treacle?")
-    delay(2000)
-    println("Yes, I can bring the treacle!")
-    "treacle"
-  }
-  val doorMouse = async {
-    println("Can you bring the tea?")
-    delay(1000)
-    println("Yes, I can bring the tea!")
-    "tea"
-  }
-  println("Alice prepares for the party")
-  delay(1500)
-  println("Ready for the party")
-  println(doorMouse.await())
-  println(madHatter.await())
-  println(marchHare.await())
-}

Concurrency/async and await/Examples/task-info.yaml

@@ -1,4 +0,0 @@
-type: theory
-files:
-- name: src/TeaPartyTexting.kt
-  visible: true

Concurrency/async and await/Examples/task.md

@@ -1,3 +0,0 @@
-## `async` and `await`
-
-Examples accompanying the atom.

Concurrency/async and await/lesson-info.yaml

@@ -1,2 +0,0 @@
-content:
-- Examples

Concurrency/section-info.yaml

@@ -1,3 +0,0 @@
-content:
-- async and await
-- Coroutines

Language Interoperability/Collections & Java/Examples/src/CollectionStructure.kt

@@ -1,14 +0,0 @@
-// CollectionsAndJava/CollectionStructure.kt
-package collectionsandjava
-
-interface Collection<E>
-interface List<E>: Collection<E>
-interface Set<E>: Collection<E>
-interface Map<K, V>
-
-interface MutableCollection<E>
-interface MutableList<E>:
-  List<E>, MutableCollection<E>
-interface MutableSet<E>:
-  Set<E>, MutableCollection<E>
-interface MutableMap<K, V>: Map<K, V>

Language Interoperability/Collections & Java/Examples/src/HiddenArrayList.kt

@@ -1,8 +0,0 @@
-// CollectionsAndJava/HiddenArrayList.kt
-import atomictest.eq
-
-fun main() {
-  val list = mutableListOf(1, 2, 3)
-  list.javaClass.name eq
-    "java.util.ArrayList"
-}

Language Interoperability/Collections & Java/Examples/src/ImmutableByDefault.kt

@@ -1,14 +0,0 @@
-// CollectionsAndJava/ImmutableByDefault.kt
-package collectionsandjava
-
-data class Animal(val name: String)
-
-interface Zoo {
-  fun viewAnimals(): Collection<Animal>
-}
-
-fun visitZoo(zoo: Zoo) {
-  val animals = zoo.viewAnimals()
-  // Compile-time error:
-  // animals.add(Animal("Grumpy Cat"))
-}

Language Interoperability/Collections & Java/Examples/src/JavaList.kt

@@ -1,7 +0,0 @@
-// CollectionsAndJava/JavaList.kt
-import atomictest.eq
-
-fun main() {
-  val list = listOf(1, 2, 3)
-  (list is java.util.List<*>) eq true
-}

Language Interoperability/Collections & Java/Examples/src/ReadOnlyCollections.kt

@@ -1,11 +0,0 @@
-// CollectionsAndJava/ReadOnlyCollections.kt
-import atomictest.eq
-
-fun main() {
-  val mutableList = mutableListOf(1, 2, 3)
-  // Read-only reference to a mutable list:
-  val list: List<Int> = mutableList
-  mutableList += 4
-  // list has changed:
-  list eq "[1, 2, 3, 4]"
-}

Language Interoperability/Collections & Java/Examples/task-info.yaml

@@ -1,12 +0,0 @@
-type: theory
-files:
-- name: src/HiddenArrayList.kt
-  visible: true
-- name: src/ImmutableByDefault.kt
-  visible: true
-- name: src/CollectionStructure.kt
-  visible: true
-- name: src/JavaList.kt
-  visible: true
-- name: src/ReadOnlyCollections.kt
-  visible: true

Language Interoperability/Collections & Java/Examples/task.md

@@ -1,3 +0,0 @@
-## Collections & Java
-
-Examples accompanying the atom.

Language Interoperability/Collections & Java/lesson-info.yaml

@@ -1,2 +0,0 @@
-content:
-- Examples

Language Interoperability/Java Checked Exceptions & Kotlin/Examples/src/AnnotateThrows.kt

@@ -1,8 +0,0 @@
-// ExceptionHandling/AnnotateThrows.kt
-package checked
-import java.io.IOException
-
-@Throws(IOException::class)
-fun hasCheckedException() {
-  throw IOException()
-}

Language Interoperability/Java Checked Exceptions & Kotlin/Examples/src/ExceptionHandling/CatchChecked.java

@@ -1,14 +0,0 @@
-// ExceptionHandling/CatchChecked.java
-import checked.AnnotateThrowsKt;
-import java.io.IOException;
-import static atomictest.AtomicTestKt.eq;
-
-public class CatchChecked {
-  public static void main(String[] args) {
-    try {
-      AnnotateThrowsKt.hasCheckedException();
-    } catch(IOException e) {
-      eq(e, "java.io.IOException");
-    }
-  }
-}

Language Interoperability/Java Checked Exceptions & Kotlin/Examples/src/ExceptionHandling/JavaChecked.java

@@ -1,33 +0,0 @@
-// ExceptionHandling/JavaChecked.java
-import java.io.*;
-import java.nio.file.*;
-import static atomictest.AtomicTestKt.eq;
-
-public class JavaChecked {
-  // Build path to current source file, based
-  // on directory where Gradle is invoked:
-  static Path thisFile = Paths.get(
-    "Examples", "ExceptionHandling",
-    "JavaChecked.java");
-  public static void main(String[] args) {
-    BufferedReader source = null;
-    try {
-      source = new BufferedReader(
-        new FileReader(thisFile.toFile()));
-    } catch(FileNotFoundException e) {
-      // Recover from file-open error
-    }
-    try {
-      String first = source.readLine();
-      eq(first, "// ExceptionHandling/" +
-        "JavaChecked.java");
-    } catch(IOException e) {
-      // Recover from read() error
-    }
-    try {
-      source.close();
-    } catch(IOException e) {
-      // Recover from close() error
-    }
-  }
-}

Language Interoperability/Java Checked Exceptions & Kotlin/Examples/src/KotlinChecked.kt

@@ -1,10 +0,0 @@
-// ExceptionHandling/KotlinChecked.kt
-import atomictest.eq
-import java.io.File
-
-fun main() {
-  File("Examples/ExceptionHandling/" +
-    "KotlinChecked.kt")
-    .readLines()[0] eq
-    "// ExceptionHandling/KotlinChecked.kt"
-}

Language Interoperability/Java Checked Exceptions & Kotlin/Examples/src/WithCleanup.kt

@@ -1,21 +0,0 @@
-// ExceptionHandling/WithCleanup.kt
-package withfunction
-
-class Cleanup(n: Int): AutoCloseable {
-  val id = n
-  val x = println("Create $id")
-  fun show() { println("Use $id")}
-  override fun close() = println("Close $id")
-}
-
-fun main() {
-  with(Cleanup(1)) { show() }
-  Cleanup(2).use { it.show() }
-}
-/* Output:
-Create 1
-Use 1
-Create 2
-Use 2
-Close 2
-*/

Language Interoperability/Java Checked Exceptions & Kotlin/Examples/task-info.yaml

@@ -1,12 +0,0 @@
-type: theory
-files:
-- name: src/ExceptionHandling/JavaChecked.java
-  visible: true
-- name: src/KotlinChecked.kt
-  visible: true
-- name: src/AnnotateThrows.kt
-  visible: true
-- name: src/ExceptionHandling/CatchChecked.java
-  visible: true
-- name: src/WithCleanup.kt
-  visible: true

Language Interoperability/Java Checked Exceptions & Kotlin/Examples/task.md

@@ -1,3 +0,0 @@
-## Java Checked Exceptions & Kotlin
-
-Examples accompanying the atom.

Language Interoperability/Java Checked Exceptions & Kotlin/lesson-info.yaml

@@ -1,2 +0,0 @@
-content:
-- Examples

Language Interoperability/Mixing Kotlin & Java/Examples/src/BigFibonacci.kt

@@ -1,25 +0,0 @@
-// AdaptingJava/BigFibonacci.kt
-package adaptingjava
-import atomictest.eq
-import bigint.*
-
-fun fibonacci(n: Int): BigInt {
-  tailrec fun fibonacci(
-    n: Int,
-    current: BigInt,
-    next: BigInt
-  ): BigInt {
-    if (n == 0) return current
-    return fibonacci(
-      n - 1, next, current + next)
-  }
-  return fibonacci(n, zero, one)
-}
-
-fun main() {
-  (0..7).map { fibonacci(it) } eq
-  "[0, 1, 1, 2, 3, 5, 8, 13]"
-  fibonacci(22) eq 17711.big
-  fibonacci(150) eq
-    "9969216677189303386214405760200".big
-}

Language Interoperability/Mixing Kotlin & Java/Examples/src/BigInt.kt

@@ -1,15 +0,0 @@
-// AdaptingJava/BigInt.kt
-package bigint
-import java.math.BigInteger
-
-typealias BigInt = BigInteger
-
-val Int.big: BigInt
-  get() = BigInt.valueOf(toLong())
-
-val String.big: BigInt
-  get() = BigInt(this)
-
-val zero = BigInt.ZERO
-val one = BigInt.ONE
-val two = 2.big

Language Interoperability/Mixing Kotlin & Java/Examples/src/ChangeName.kt

@@ -1,5 +0,0 @@
-// fromjava/ChangeName.kt
-@file:JvmName("Utils")
-package mypackage
-
-fun salad() = "Lettuce!"

Language Interoperability/Mixing Kotlin & Java/Examples/src/ExtensionsToJavaClass.kt

@@ -1,17 +0,0 @@
-// fromkotlin/ExtensionsToJavaClass.kt
-package fromkotlin
-import atomictest.eq
-
-fun Chameleon.adjustToTemperature(
-  isHot: Boolean
-) {
-  color = if (isHot) "grey" else "black"
-}
-
-fun main() {
-  val chameleon = Chameleon()
-  chameleon.size = 2
-  chameleon.size
-  chameleon.adjustToTemperature(isHot = true)
-  chameleon.color eq "grey"
-}

Language Interoperability/Mixing Kotlin & Java/Examples/src/KotlinClass.kt

@@ -1,7 +0,0 @@
-// fromjava/KotlinClass.kt
-package mypackage
-
-class Basic {
-  var property1 = 1
-  fun value() = property1 * 10
-}

Language Interoperability/Mixing Kotlin & Java/Examples/src/KotlinDataClass.kt

@@ -1,7 +0,0 @@
-// fromjava/KotlinDataClass.kt
-package fromjava
-
-data class Data(
-  var name: String,
-  var age: Int
-)

Language Interoperability/Mixing Kotlin & Java/Examples/src/Random.kt

@@ -1,8 +0,0 @@
-// fromkotlin/Random.kt
-import atomictest.eq
-import java.util.Random
-
-fun main() {
-  val rand = Random(47)
-  rand.nextInt(100) eq 58
-}

Language Interoperability/Mixing Kotlin & Java/Examples/src/TopLevelFunction.kt

@@ -1,4 +0,0 @@
-// fromjava/TopLevelFunction.kt
-package mypackage
-
-fun hi() = "Hello!"

Language Interoperability/Mixing Kotlin & Java/Examples/src/UseBeanClass.kt

@@ -1,13 +0,0 @@
-// fromkotlin/UseBeanClass.kt
-import fromkotlin.Chameleon
-import atomictest.eq
-
-fun main() {
-  val chameleon = Chameleon()
-  chameleon.size = 1
-  chameleon.size eq 1
-  chameleon.color = "green"
-  chameleon.color eq "green"
-  chameleon.color = "turquoise"
-  chameleon.color eq "turquoise"
-}

Language Interoperability/Mixing Kotlin & Java/Examples/src/fromjava/CallTopLevelFunction.java

@@ -1,10 +0,0 @@
-// fromjava/CallTopLevelFunction.java
-package fromjava;
-import mypackage.TopLevelFunctionKt;
-import static atomictest.AtomicTestKt.eq;
-
-public class CallTopLevelFunction {
-  public static void main(String[] args) {
-    eq(TopLevelFunctionKt.hi(), "Hello!");
-  }
-}

Language Interoperability/Mixing Kotlin & Java/Examples/src/fromjava/CallTopLevelFunction2.java

@@ -1,10 +0,0 @@
-// fromjava/CallTopLevelFunction2.java
-package fromjava;
-import static mypackage.TopLevelFunctionKt.hi;
-import static atomictest.AtomicTestKt.eq;
-
-public class CallTopLevelFunction2 {
-  public static void main(String[] args) {
-    eq(hi(), "Hello!");
-  }
-}

Language Interoperability/Mixing Kotlin & Java/Examples/src/fromjava/MakeSalad.java

@@ -1,10 +0,0 @@
-// fromjava/MakeSalad.java
-package fromjava;
-import mypackage.Utils;
-import static atomictest.AtomicTestKt.eq;
-
-public class MakeSalad {
-  public static void main(String[] args) {
-    eq(Utils.salad(), "Lettuce!");
-  }
-}

Language Interoperability/Mixing Kotlin & Java/Examples/src/fromjava/UsingDataClass.java

@@ -1,24 +0,0 @@
-// fromjava/UsingDataClass.java
-package fromjava;
-import java.util.HashMap;
-import static atomictest.AtomicTestKt.eq;
-
-public class UsingDataClass {
-  public static void main(String[] args) {
-    Data d = new Data("Alice", 22);
-    String name = d.getName();
-    d.setName("Bob");
-    int age = d.getAge();
-    d.setAge(age + 1);
-    // toString():
-    eq(d, "Data(name=Bob, age=23)");
-    HashMap<Data, Integer> hm =
-      new HashMap<>();
-    hm.put(d, 47);
-    // Data objects work as hash keys:
-    eq((double)hm.get(d), (double)47);
-    // Call copy() from the Data class:
-    Data d2 = d.copy("Sam", 24);
-    eq(d2, "Data(name=Sam, age=24)");
-  }
-}

Language Interoperability/Mixing Kotlin & Java/Examples/src/fromjava/UsingKotlinClass.java

@@ -1,13 +0,0 @@
-// fromjava/UsingKotlinClass.java
-package fromjava;
-import mypackage.Basic;
-import static atomictest.AtomicTestKt.eq;
-
-public class UsingKotlinClass {
-  public static void main(String[] args) {
-    Basic b = new Basic();
-    eq(b.getProperty1(), 1);
-    b.setProperty1(12);
-    eq(b.value(), 120);
-  }
-}

Language Interoperability/Mixing Kotlin & Java/Examples/src/fromkotlin/Chameleon.java

@@ -1,21 +0,0 @@
-// fromkotlin/Chameleon.java
-package fromkotlin;
-import java.io.Serializable;
-
-public class
-Chameleon implements Serializable {
-  private int size;
-  private String color;
-  public int getSize() {
-    return size;
-  }
-  public void setSize(int newSize) {
-    size = newSize;
-  }
-  public String getColor() {
-    return color;
-  }
-  public void setColor(String newColor) {
-    color = newColor;
-  }
-}

Language Interoperability/Mixing Kotlin & Java/Examples/task-info.yaml

@@ -1,32 +0,0 @@
-type: theory
-files:
-- name: src/Random.kt
-  visible: true
-- name: src/fromkotlin/Chameleon.java
-  visible: true
-- name: src/UseBeanClass.kt
-  visible: true
-- name: src/ExtensionsToJavaClass.kt
-  visible: true
-- name: src/KotlinClass.kt
-  visible: true
-- name: src/fromjava/UsingKotlinClass.java
-  visible: true
-- name: src/KotlinDataClass.kt
-  visible: true
-- name: src/fromjava/UsingDataClass.java
-  visible: true
-- name: src/TopLevelFunction.kt
-  visible: true
-- name: src/fromjava/CallTopLevelFunction.java
-  visible: true
-- name: src/fromjava/CallTopLevelFunction2.java
-  visible: true
-- name: src/ChangeName.kt
-  visible: true
-- name: src/fromjava/MakeSalad.java
-  visible: true
-- name: src/BigInt.kt
-  visible: true
-- name: src/BigFibonacci.kt
-  visible: true

Language Interoperability/Mixing Kotlin & Java/Examples/task.md

@@ -1,3 +0,0 @@
-## Mixing Kotlin & Java
-
-Examples accompanying the atom.

Language Interoperability/Mixing Kotlin & Java/lesson-info.yaml

@@ -1,2 +0,0 @@
-content:
-- Examples

Language Interoperability/Nullability Annotations/Examples/src/AnnotatedJava.kt

@@ -1,20 +0,0 @@
-// NullabilityAnnotations/AnnotatedJava.kt
-package nullabilityannotations
-import javacode.AnnotatedJTool
-import atomictest.eq
-
-object KotlinCode {
-  val a = AnnotatedJTool.getSafe("")
-  // Won't compile:
-  // val b = AnnotatedJTool.getSafe(null)
-  val c = AnnotatedJTool.getUnsafe("")
-  val d = AnnotatedJTool.getUnsafe(null)
-}
-
-fun main() {
-  with(KotlinCode) {
-    ::a.returnType eq "javacode.JTool"
-    ::c.returnType eq "javacode.JTool?"
-    ::d.returnType eq "javacode.JTool?"
-  }
-}

Language Interoperability/Nullability Annotations/Examples/src/javacode/AnnotatedJTool.java

@@ -1,21 +0,0 @@
-// javacode/AnnotatedJTool.java
-package javacode;
-import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
-
-public class AnnotatedJTool {
-  @Nullable
-  public static JTool
-  getUnsafe(@Nullable String s) {
-    if(s == null) return null;
-    return getSafe(s);
-  }
-  @NotNull
-  public static JTool
-  getSafe(@NotNull String s) {
-    return new JTool();
-  }
-  public String method() {
-    return "Success";
-  }
-}

Language Interoperability/Nullability Annotations/Examples/task-info.yaml

@@ -1,6 +0,0 @@
-type: theory
-files:
-- name: src/javacode/AnnotatedJTool.java
-  visible: true
-- name: src/AnnotatedJava.kt
-  visible: true

Language Interoperability/Nullability Annotations/Examples/task.md

@@ -1,3 +0,0 @@
-## Nullability Annotations
-
-Examples accompanying the atom.

Language Interoperability/Nullability Annotations/lesson-info.yaml

@@ -1,2 +0,0 @@
-content:
-- Examples

Language Interoperability/Nullable Types & Java/Examples/src/NPEOnPlatformType.kt

@@ -1,19 +0,0 @@
-// PlatformTypes/NPEOnPlatformType.kt
-import javacode.JTool
-import atomictest.*
-
-fun main() {
-  val xn = JTool.get(null)          // [1]
-  xn?.method() eq null              // [2]
-  capture {
-    xn.method()                     // [3]
-  } eq "NullPointerException"
-
-  val yn: JTool? = JTool.get(null)  // [4]
-  yn?.method() eq null
-
-  capture {
-    val zn: JTool = JTool.get(null) // [5]
-  } eq "IllegalStateException: " +
-    "JTool.get(null) must not be null"
-}

Language Interoperability/Nullable Types & Java/Examples/src/PlatformTypes.kt

@@ -1,21 +0,0 @@
-// PlatformTypes/PlatformTypes.kt
-import javacode.JTool
-import atomictest.eq
-
-object KotlinCode {
-  val a: JTool? = JTool.get("")  // [1]
-  val b: JTool = JTool.get("")   // [2]
-  val c = JTool.get("")          // [3]
-}
-
-fun main() {
-  with(KotlinCode) {
-    a?.method() eq "Success"     // [4]
-    b.method() eq "Success"
-    c.method() eq "Success"      // [5]
-    ::a.returnType eq "javacode.JTool?"
-    ::b.returnType eq "javacode.JTool"
-    ::c.returnType eq
-      "javacode.JTool!"          // [6]
-  }
-}

Language Interoperability/Nullable Types & Java/Examples/src/javacode/JTool.java

@@ -1,12 +0,0 @@
-// javacode/JTool.java
-package javacode;
-
-public class JTool {
-  public static JTool get(String s) {
-    if(s == null) return null;
-    return new JTool();
-  }
-  public String method() {
-    return "Success";
-  }
-}

Language Interoperability/Nullable Types & Java/Examples/task-info.yaml

@@ -1,8 +0,0 @@
-type: theory
-files:
-- name: src/javacode/JTool.java
-  visible: true
-- name: src/PlatformTypes.kt
-  visible: true
-- name: src/NPEOnPlatformType.kt
-  visible: true

Language Interoperability/Nullable Types & Java/Examples/task.md

@@ -1,3 +0,0 @@
-## Nullable Types & Java
-
-Examples accompanying the atom.

Language Interoperability/Nullable Types & Java/lesson-info.yaml

@@ -1,2 +0,0 @@
-content:
-- Examples

Language Interoperability/section-info.yaml

@@ -1,6 +0,0 @@
-content:
-- Mixing Kotlin & Java
-- Java Checked Exceptions & Kotlin
-- Nullable Types & Java
-- Nullability Annotations
-- Collections & Java

course-info.yaml

@@ -9,7 +9,4 @@ content:
 - Functional Programming
 - Object-Oriented Programming
 - Preventing Failure
-- Concurrency
 - Power Tools
-- Advanced Topics
-- Language Interoperability