wip

Author: j5ik2o

src/main/java/j/template_method/like/functions/Display.java

@@ -13,7 +13,7 @@ public Display(Supplier<Void> opener, Supplier<Void> printer, Supplier<Void> clo
     this.closer = closer;
   }
 
-  public final void display() {
+    public void display() {
     opener.get();
     for (int i = 0; i < 5; i++) {
       printer.get();

src/main/kotlin/k/template_method/like/functions/Display.kt

@@ -0,0 +1,15 @@
+package k.template_method.like.functions
+
+class Display(
+    private val opener: () -> Unit,
+    private val printer: () -> Unit,
+    private val closer: () -> Unit
+) {
+    fun display() {
+        opener()
+        repeat(5) {
+            printer()
+        }
+        closer()
+    }
+}

src/main/kotlin/k/template_method/like/functions/DisplayFactory.kt

@@ -0,0 +1,30 @@
+package k.template_method.like.functions
+
+object DisplayFactory {
+
+    fun createString(string: String): Display {
+        val width = string.length
+
+        fun printLine() {
+            print("+")
+            repeat(width) {
+                print("-")
+            }
+            println("+")
+        }
+
+        val opener = { printLine() }
+        val printer = { println("|$string|") }
+        val closer = { printLine() }
+
+        return Display(opener, printer, closer)
+    }
+
+    fun createChar(ch: Char): Display {
+        val opener = { print("<<") }
+        val printer = { print(ch) }
+        val closer = { println(">>") }
+
+        return Display(opener, printer, closer)
+    }
+}

src/main/kotlin/k/template_method/like/functions/Main.kt

@@ -0,0 +1,12 @@
+package k.template_method.like.functions
+
+object Main {
+    @JvmStatic
+    fun main(args: Array<String>) {
+        val d1 = DisplayFactory.createChar('H')
+        val d2 = DisplayFactory.createString("Hello, world.")
+
+        d1.display()
+        d2.display()
+    }
+}

src/main/scala/s/template_method/like/functional/Display.scala

@@ -1,15 +1,9 @@
 package s.template_method.like.functional
 
-import s.template_method.like.functional.Display._
-
-object Display {
-  type DisplayDelegate = () => Unit
-}
-
 final class Display(
-    private val opener: DisplayDelegate,
-    private val printer: DisplayDelegate,
-    private val closer: DisplayDelegate
+                     opener: () => Unit,
+                     printer: () => Unit,
+                     closer: () => Unit
 ) {
   def display(): Unit = {
     opener()

src/main/scala/s/template_method/like/functional/DisplayFactory.scala

@@ -1,7 +1,5 @@
 package s.template_method.like.functional
 
-import s.template_method.like.functional.Display.DisplayDelegate
-
 object DisplayFactory {
 
   def createString(string: String): Display = {
@@ -15,34 +13,17 @@ object DisplayFactory {
       Console.println("+")
     }
 
-    val opener: DisplayDelegate = () => {
-      printLine()
-    }
-
-    val printer: DisplayDelegate = () => {
-      Console.println("|" + string + "|")
-    }
-
-    val closer: DisplayDelegate = () => {
-      printLine()
-    }
+    val opener = () => printLine()
+    val printer = () => Console.println("|" + string + "|")
+    val closer = () => printLine()
 
     new Display(opener, printer, closer)
   }
 
   def createChar(ch: Char): Display = {
-    val opener: DisplayDelegate = () => {
-      Console.print("<<")
-    }
-
-    val printer: DisplayDelegate = () => {
-      Console.print(ch)
-    }
-
-    val closer: DisplayDelegate = () => {
-      Console.println(">>")
-    }
-
+    val opener = () => Console.print("<<")
+    val printer = () => Console.print(ch)
+    val closer = () => Console.println(">>")
     new Display(opener, printer, closer)
   }