feat(collections): 🎸 collection improvements, translated

Refers: #10

Author: rcmoutinho

book/08-java-collections/sections/05-collection-improvements.asc

@@ -1,83 +1,82 @@
 :java-package: src/org/j6toj8/collections
 :section-java-package: ../../../{java-package}
 
-=== Melhorias de Java 8 em Coleções
+=== Java 8 collection improvements
 
-.Objetivo
+.Objective
 --------------------------------------------------
 Develop code that uses Java SE 8 collection improvements, including the Collection.removeIf(), List.replaceAll(), Map.computeIfAbsent(), and Map.computeIfPresent() methods
--
-Desenvolver código que use as melhorias em coleções do Java SE 8, incluindo os métodos Collection.removeIf(), List.replaceAll(), Map.computeIfAbsent(), e Map.computeIfPresent()
 --------------------------------------------------
 
-O Java 8 trouxe vários métodos em Collections que utilizam como argumento uma função lambda, facilitando algumas operações. Serão apresentados exemplos dos 4 métodos relacionados a esse objetivo.
+Java 8 has introduced several methods in Collections that use a lambda function as argument, making some operations easier. Examples of the 4 methods related to this objective will be presented.
 
-. É possível remover um item de uma coleção condicionalmente com uma função lambda.
+. You can conditionally remove an item from a collection with a lambda function.
 +
 [source,java,indent=0]
 .{java-package}/improvements/Collections_RemoveIf.java
 ----
 include::{section-java-package}/improvements/Collections_RemoveIf.java[tag=code]
 ----
 +
-.Saída no console
+.console output
 [source,console]
 ----
-Lista antes do removeIf: [1, 2, 3, 4, 5, 6, 7, 8, 9]
-Lista depois do removeIf: [1, 3, 5, 7, 9]
+List before removeIf: [1, 2, 3, 4, 5, 6, 7, 8, 9]
+List after removeIf: [1, 3, 5, 7, 9]
 ----
 
-. É possível modificar todos os elementos da coleção de acordo com uma operação lambda.
+. You can modify all elements of the collection according to a lambda operation.
 +
 [source,java,indent=0]
 .{java-package}/improvements/Collections_ReplaceAll.java
 ----
 include::{section-java-package}/improvements/Collections_ReplaceAll.java[tag=code]
 ----
 +
-.Saída no console
+.console output
 [source,console]
 ----
-Lista antes do replaceAll: [1, 2, 3, 4, 5, 6, 7, 8, 9]
-Lista depois do replaceAll: [2, 4, 6, 8, 10, 12, 14, 16, 18]
+List before replaceAll: [1, 2, 3, 4, 5, 6, 7, 8, 9]
+List after replaceAll: [2, 4, 6, 8, 10, 12, 14, 16, 18]
 ----
 
-. É possível colocar valores em um `Map` a partir de uma função lambda, apenas se a chave *não* estiver presente no `Map`.
+. You can put values in a `Map` from a lambda function only if the *key* is not present in `Map`.
 +
 [source,java,indent=0]
 .{java-package}/improvements/Collections_ComputeIfAbsent.java
 ----
 include::{section-java-package}/improvements/Collections_ComputeIfAbsent.java[tag=code]
 ----
 +
-.Saída no console
+.console output
 [source,console]
 ----
-Map antes do computeIfAbsent: {A=65, B=66}
-Map depois do computeIfAbsent: {A=65, B=66, C=67}
+Map before computeIfAbsent: {A=65, B=66}
+Map after computeIfAbsent: {A=65, B=66, C=67}
 ----
 
-. É possível alterar valores em um `Map` a partir de uma função lambda, apenas se a chave estiver presente no `Map`.
+. You can change values in a `Map` from a lambda function only if the key is present in `Map`.
 +
 [source,java,indent=0]
 .{java-package}/improvements/Collections_ComputeIfPresent.java
 ----
 include::{section-java-package}/improvements/Collections_ComputeIfPresent.java[tag=code]
 ----
 +
-.Saída no console
+.console output
 [source,console]
 ----
-Map antes do computeIfPresent: {A=65, B=66}
-Map depois do computeIfPresent: {A=4225, B=4356}
+Map before computeIfPresent: {A=65, B=66}
+Map after computeIfPresent: {A=4225, B=4356}
 ----
 
+.References
 ****
 
 * Using Streams
 +
-Boyarsky, Jeanne; Selikoff, Scott. OCP: Oracle Certified Professional Java SE 8 Programmer II Study Guide (p. 185). Wiley. Edição do Kindle. 
+Boyarsky, Jeanne; Selikoff, Scott. OCP: Oracle Certified Professional Java SE 8 Programmer II Study Guide (p. 185). Wiley. Kindle Edition.
 
 * https://www.baeldung.com/java-8-streams[The Java 8 Stream API Tutorial.]
 
-****
+****

src/org/j6toj8/collections/improvements/Collections_ComputeIfAbsent.java

@@ -10,10 +10,10 @@ public static void main(String[] args) {
     map.put("A", "A".hashCode());
     map.put("B", "B".hashCode());
 
-    System.out.println("Map antes do computeIfAbsent: " + map);
+    System.out.println("Map before computeIfAbsent: " + map);
     map.computeIfAbsent("A", k -> k.hashCode());
     map.computeIfAbsent("C", k -> k.hashCode());
-    System.out.println("Map depois do computeIfAbsent: " + map);
+    System.out.println("Map after computeIfAbsent: " + map);
     // end::code[]
   }
  }

src/org/j6toj8/collections/improvements/Collections_ComputeIfPresent.java

@@ -10,12 +10,12 @@ public static void main(String[] args) {
     map.put("A", "A".hashCode());
     map.put("B", "B".hashCode());
 
-    System.out.println("Map antes do computeIfPresent: " + map);
+    System.out.println("Map before computeIfPresent: " + map);
     // k = chave; v = valor
     map.computeIfPresent("A", (k, v) -> k.hashCode() * v);
     map.computeIfPresent("B", (k, v) -> k.hashCode() * v);
     map.computeIfPresent("C", (k, v) -> k.hashCode() * v);
-    System.out.println("Map depois do computeIfPresent: " + map);
+    System.out.println("Map after computeIfPresent: " + map);
     // end::code[]
   }
  }

src/org/j6toj8/collections/improvements/Collections_RemoveIf.java

@@ -10,9 +10,9 @@ public static void main(String[] args) {
     // tag::code[]
     List<Integer> list = new ArrayList<Integer>(Arrays.asList(1,2,3,4,5,6,7,8,9));
 
-    System.out.println("Lista antes do removeIf: " + list);
-    list.removeIf(n -> n % 2 == 0); // remove números pares
-    System.out.println("Lista depois do removeIf: " + list);
+    System.out.println("List before removeIf: " + list);
+    list.removeIf(n -> n % 2 == 0); // remove even numbers
+    System.out.println("List after removeIf: " + list);
     // end::code[]
   }
  }

src/org/j6toj8/collections/improvements/Collections_ReplaceAll.java

@@ -10,9 +10,9 @@ public static void main(String[] args) {
     // tag::code[]
     List<Integer> list = new ArrayList<Integer>(Arrays.asList(1,2,3,4,5,6,7,8,9));
 
-    System.out.println("Lista antes do replaceAll: " + list);
-    list.replaceAll(n -> n * 2); // multiplica todos os elementos por 2
-    System.out.println("Lista depois do replaceAll: " + list);
+    System.out.println("List before replaceAll: " + list);
+    list.replaceAll(n -> n * 2); // multiply all elements by 2
+    System.out.println("List after replaceAll: " + list);
     // end::code[]
   }
  }