Merge branch 'eugenp:master' into master

algorithms-modules/algorithms-sorting-2/README.md

@@ -4,4 +4,5 @@
 - [Sorting Strings by Contained Numbers in Java](https://www.baeldung.com/java-sort-strings-contained-numbers)
 - [Guide to In-Place Sorting Algorithm Works with a Java Implementation](https://www.baeldung.com/java-in-place-sorting)
 - [Partitioning and Sorting Arrays with Many Repeated Entries with Java Examples](https://www.baeldung.com/java-sorting-arrays-with-repeated-entries)
+- [Gravity/Bead Sort in Java](https://www.baeldung.com/java-gravity-bead-sort)
 - More articles: [[<-- prev]](/algorithms-sorting)

core-java-modules/core-java-collections-set-2/README.md

@@ -1,3 +1,4 @@
 ## Relevant articles
 
 - [Using Streams to Collect Into a TreeSet](https://www.baeldung.com/java-stream-collect-into-treeset)
+- [A Guide to LinkedHashSet in Java](https://www.baeldung.com/java-linkedhashset)

core-java-modules/core-java-lang-math-3/src/main/java/com/baeldung/math/standarddeviation/StandardDeviation.java

@@ -0,0 +1,35 @@
+package com.baeldung.math.standarddeviation;
+
+import java.util.Arrays;
+
+public class StandardDeviation {
+
+    public static double calculateStandardDeviation(double[] array) {
+
+        // get the sum of array
+        double sum = 0.0;
+        for (double i : array) {
+            sum += i;
+        }
+
+        // get the mean of array
+        int length = array.length;
+        double mean = sum / length;
+
+        // calculate the standard deviation
+        double standardDeviation = 0.0;
+        for (double num : array) {
+            standardDeviation += Math.pow(num - mean, 2);
+        }
+
+        return Math.sqrt(standardDeviation / length);
+    }
+
+    public static void main(String[] args) {
+        double[] array = {25, 5, 45, 68, 61, 46, 24, 95};
+        System.out.println("List of elements: " + Arrays.toString(array));
+
+        double standardDeviation = calculateStandardDeviation(array);
+        System.out.format("Standard Deviation = %.6f", standardDeviation);
+    }
+}

core-java-modules/core-java-networking-4/README.md

@@ -0,0 +1,2 @@
+## Relevant Articles:
+- [Difference Between URI.create() and new URI()](https://www.baeldung.com/java-uri-create-and-new-uri)

libraries-data/pom.xml

@@ -174,7 +174,7 @@
         <gson.version>2.8.2</gson.version>
         <cache.version>1.1.1</cache.version>
         <flink.version>1.5.0</flink.version>
-        <hazelcast.version>3.8.4</hazelcast.version>
+        <hazelcast.version>5.2.0</hazelcast.version>
         <org.apache.crunch.crunch-core.version>0.15.0</org.apache.crunch.crunch-core.version>
         <org.apache.hadoop.hadoop-client>2.2.0</org.apache.hadoop.hadoop-client>
         <jmapper.version>1.6.0.1</jmapper.version>

libraries-data/src/test/java/com/baeldung/jcache/CacheLoaderIntegrationTest.java

@@ -16,21 +16,22 @@ import org.junit.Test;
 public class CacheLoaderIntegrationTest {
 
     private static final String CACHE_NAME = "SimpleCache";
+    private static final String HAZELCAST_MEMBER_CACHING_PROVIDER = "com.hazelcast.cache.HazelcastMemberCachingProvider";
 
     private Cache<Integer, String> cache;
 
     @Before
     public void setup() {
         // Adding fully qualified class name because of multiple Cache Provider (Ignite and Hazelcast)
-        CachingProvider cachingProvider = Caching.getCachingProvider("com.hazelcast.cache.HazelcastCachingProvider");
+        CachingProvider cachingProvider = Caching.getCachingProvider(HAZELCAST_MEMBER_CACHING_PROVIDER);
         CacheManager cacheManager = cachingProvider.getCacheManager();
         MutableConfiguration<Integer, String> config = new MutableConfiguration<Integer, String>().setReadThrough(true).setCacheLoaderFactory(new FactoryBuilder.SingletonFactory<>(new SimpleCacheLoader()));
-        this.cache = cacheManager.createCache("SimpleCache", config);
+        this.cache = cacheManager.createCache( CACHE_NAME, config );
     }
 
     @After
     public void tearDown() {
-        Caching.getCachingProvider("com.hazelcast.cache.HazelcastCachingProvider").getCacheManager().destroyCache(CACHE_NAME);
+        Caching.getCachingProvider(HAZELCAST_MEMBER_CACHING_PROVIDER).getCacheManager().destroyCache(CACHE_NAME);
     }
 
     @Test

patterns-modules/design-patterns-creational/src/main/java/com/baeldung/factorygeneric/DateNotifier.java

@@ -1,4 +1,4 @@
-package com.baeldung.factoryGeneric;
+package com.baeldung.factorygeneric;
 
 import java.util.Date;
 

patterns-modules/design-patterns-creational/src/main/java/com/baeldung/factorygeneric/Main.java

@@ -1,4 +1,4 @@
-package com.baeldung.factoryGeneric;
+package com.baeldung.factorygeneric;
 
 import java.util.Date;
 

patterns-modules/design-patterns-creational/src/main/java/com/baeldung/factorygeneric/Notifier.java

@@ -1,4 +1,4 @@
-package com.baeldung.factoryGeneric;
+package com.baeldung.factorygeneric;
 
 public interface Notifier<T> {
 

patterns-modules/design-patterns-creational/src/main/java/com/baeldung/factorygeneric/NotifierFactory.java

@@ -1,4 +1,4 @@
-package com.baeldung.factoryGeneric;
+package com.baeldung.factorygeneric;
 
 import java.util.Date;
 

patterns-modules/design-patterns-creational/src/main/java/com/baeldung/factorygeneric/Record.java

@@ -1,4 +1,4 @@
-package com.baeldung.factoryGeneric;
+package com.baeldung.factorygeneric;
 
 import java.util.Date;
 

patterns-modules/design-patterns-creational/src/main/java/com/baeldung/factorygeneric/StringNotifier.java

@@ -1,4 +1,4 @@
-package com.baeldung.factoryGeneric;
+package com.baeldung.factorygeneric;
 
 public class StringNotifier implements Notifier<String> {
 

patterns-modules/design-patterns-creational/src/test/java/com/baeldung/factorygeneric/FactoryGenericUnitTest.java

@@ -1,4 +1,4 @@
-package com.baeldung.factoryGeneric;
+package com.baeldung.factorygeneric;
 
 import org.junit.jupiter.api.Test;
 import static org.junit.jupiter.api.Assertions.*;

spring-5-webflux-2/README.md

@@ -5,3 +5,4 @@ This module contains articles about Spring 5 WebFlux
 ## Relevant articles:
 - [Spring Webflux and @Cacheable Annotation](https://www.baeldung.com/spring-webflux-cacheable)
 - [Comparison Between Mono’s doOnNext() and doOnSuccess()](https://www.baeldung.com/mono-doonnext-doonsuccess)
+- [How to Access the First Element of a Flux](https://www.baeldung.com/java-flux-first-element)

spring-boot-modules/spring-boot-groovy/README.md

@@ -7,3 +7,4 @@ This module contains articles about Spring with Groovy
 
 - [Building a Simple Web Application with Spring Boot and Groovy](https://www.baeldung.com/spring-boot-groovy-web-app)
 - [Groovy Bean Definitions](https://www.baeldung.com/spring-groovy-beans)
+- [Using Groovy in Spring](https://www.baeldung.com/groovy/spring-using-groovy)

spring-boot-modules/spring-boot-properties-3/README.md

@@ -9,3 +9,4 @@
 - [Using application.yml vs application.properties in Spring Boot](https://www.baeldung.com/spring-boot-yaml-vs-properties)
 - [Load Spring Boot Properties From a JSON File](https://www.baeldung.com/spring-boot-json-properties)
 - [IntelliJ – Cannot Resolve Spring Boot Configuration Properties Error](https://www.baeldung.com/intellij-resolve-spring-boot-configuration-properties)
+- [Log Properties in a Spring Boot Application](https://www.baeldung.com/spring-boot-log-properties)

spring-reactive-modules/spring-5-reactive-client-2/README.md

@@ -6,4 +6,5 @@ This module contains articles about reactive Spring 5 WebClient
 The "REST With Spring" Classes: http://bit.ly/restwithspring
 
 ### Relevant Articles
+- [Limiting the Requests per Second With WebClient](https://www.baeldung.com/spring-webclient-limit-requests-per-second)
 - More articles: [[<-- prev]](../spring-5-reactive-client)

testing-modules/junit-5/README.md

@@ -8,3 +8,4 @@
 - [Determine the Execution Time of JUnit Tests](https://www.baeldung.com/junit-test-execution-time)
 - [@BeforeAll and @AfterAll in Non-Static Methods](https://www.baeldung.com/java-beforeall-afterall-non-static)
 - [The java.lang.NoClassDefFoundError in JUnit](https://www.baeldung.com/junit-noclassdeffounderror)
+- [assertAll() vs Multiple Assertions in JUnit5](https://github.com/eugenp/tutorials/tree/master/testing-modules/junit-5)