added more examples of Java 9 and 10

Author: wesleyegberto

java-10/pom.xml

@@ -0,0 +1,21 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.github.wesleyegberto</groupId>
+    <artifactId>java-10-new-features</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <packaging>jar</packaging>
+
+    <dependencies>
+    </dependencies>
+
+    <build>
+        <finalName>java-10-new-features</finalName>
+    </build>
+
+    <properties>
+        <maven.compiler.source>10</maven.compiler.source>
+        <maven.compiler.target>10</maven.compiler.target>
+        <failOnMissingWebXml>false</failOnMissingWebXml>
+    </properties>
+</project>

java-10/src/main/java/com/github/wesleyegberto/collections/CollectionsCopyOf.java

@@ -0,0 +1,23 @@
+package com.github.wesleyegberto.collections;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+public class CollectionsCopyOf {
+    public static void main(String[] args) {
+        List<String> muttableList = Arrays.asList("New", "Method", "To", "Copy");
+
+        // Copy methods
+        List<String> immutableList = List.copyOf(muttableList);
+        immutableList.forEach(System.out::println);
+
+        Set<String> immutableSet = Set.copyOf(muttableList);
+        immutableSet.forEach(System.out::println);
+
+        Map<String, String> immutableMap = Map.copyOf(Map.of("k1", "v1", "k2", "v2"));
+        immutableMap.forEach((key, value) -> System.out.println(key + " = " + value));
+
+    }
+}

java-10/src/main/java/com/github/wesleyegberto/collections/CollectionsFromStream.java

@@ -0,0 +1,20 @@
+package com.github.wesleyegberto.collections;
+
+import java.util.List;
+import java.util.Map;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+
+public class CollectionsFromStream {
+    public static void main(String[] args) {
+        List<String> list = List.of("Testing", "Immutable", "List", "From", "Stream");
+
+        List<String> immutableList = list.stream()
+                .collect(Collectors.toUnmodifiableList());
+        immutableList.forEach(System.out::println);
+
+        Map<String, Integer> wordsLengths = list.stream()
+                .collect(Collectors.toUnmodifiableMap(Function.identity(), word -> word.length()));
+        wordsLengths.forEach((word, length) -> System.out.println(word + " -> " + length + " letters"));
+    }
+}

java-10/src/main/java/com/github/wesleyegberto/process/ProcessTest.java

@@ -0,0 +1,12 @@
+package com.github.wesleyegberto.process;
+
+import java.lang.management.ManagementFactory;
+import java.lang.management.RuntimeMXBean;
+
+public class ProcessTest {
+    public static void main(String[] args) {
+        final RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
+        final long pid = runtime.getPid();
+        System.out.println("Process ID is: " + pid);
+    }
+}

java-8/src/main/java/com/github/wesleyegberto/map/StreamMapTest.java

@@ -3,7 +3,9 @@
 import java.util.*;
 import java.util.stream.Stream;
 import java.util.function.Function; // map operations -> transformations
-import com.github.wesleyegberto.model.*;
+
+import com.github.wesleyegberto.model.Person;
+import com.github.wesleyegberto.model.Warrior;
 
 public class StreamMapTest {
 

java-8/src/main/java/com/github/wesleyegberto/model/Warrior.java

@@ -1,7 +1,5 @@
 package com.github.wesleyegberto.model;
 
-import java.util.*;
-
 public class Warrior {
 	private Person person;
 	private String type;

java-9/others-features/build_run.sh

@@ -8,9 +8,9 @@ mkdir -p $JAR_DIR
 
 $JAVA9_HOME/bin/javac -p jdk.incubator.httpclient -d $CLASSES_DIR --module-version 1.0 `find src/main/java -name *.java`
 
-	# --main-class com.github.wesleyegberto.httpclient.HttpClientTest \
+	# --main-class HttpClientTest \
 $JAVA9_HOME/bin/jar -c -f $JAR_DIR/http-client-test.jar \
-    --main-class com.github.wesleyegberto.collections.CollectionsTest \
+    --main-class CollectionsCopyOf.CollectionsTest \
 	-C $CLASSES_DIR .
 
 

java-9/others-features/src/main/java/com/github/wesleyegberto/collections/CollectionsTest.java renamed to java-9/others-features/src/main/java/com/github/wesleyegberto/collections/collections/CollectionsTest.java

@@ -1,4 +1,4 @@
-package com.github.wesleyegberto.collections;
+package com.github.wesleyegberto.collections.collections;
 
 import java.util.List;
 import java.util.Map;

java-9/others-features/src/main/java/com/github/wesleyegberto/httpclient/HttpClientTest.java renamed to java-9/others-features/src/main/java/com/github/wesleyegberto/collections/httpclient/HttpClientTest.java

@@ -1,4 +1,4 @@
-package com.github.wesleyegberto.httpclient;
+package com.github.wesleyegberto.collections.httpclient;
 
 import java.io.IOException;
 import java.net.URI;

java-9/others-features/src/main/java/com/github/wesleyegberto/processapi/ProcessTest.java renamed to java-9/others-features/src/main/java/com/github/wesleyegberto/collections/processapi/ProcessTest.java

@@ -1,4 +1,4 @@
-package com.github.wesleyegberto.processapi;
+package com.github.wesleyegberto.collections.processapi;
 
 import java.io.IOException;
 

java-9/others-features/src/main/java/com/github/wesleyegberto/reactive/FlowTest.java renamed to java-9/others-features/src/main/java/com/github/wesleyegberto/collections/reactive/FlowTest.java

@@ -1,4 +1,4 @@
-package com.github.wesleyegberto.reactive;
+package com.github.wesleyegberto.collections.reactive;
 
 import java.util.concurrent.Flow.Subscriber;
 import java.util.concurrent.Flow.Subscription;