minor formatting cleanup

core-java/src/main/java/com/baeldung/concurrent/blockingqueue/NumbersProducer.java

@@ -19,13 +19,15 @@ public void run() {
         try {
             generateNumbers();
         } catch (InterruptedException e) {
-            Thread.currentThread().interrupt();
+            Thread.currentThread()
+                .interrupt();
         }
     }
 
     private void generateNumbers() throws InterruptedException {
         for (int i = 0; i < 100; i++) {
-            numbersQueue.put(ThreadLocalRandom.current().nextInt(100));
+            numbersQueue.put(ThreadLocalRandom.current()
+                .nextInt(100));
         }
         for (int j = 0; j < poisonPillPerProducer; j++) {
             numbersQueue.put(poisonPill);

core-java/src/main/java/com/baeldung/concurrent/delayqueue/DelayObject.java

@@ -27,9 +27,6 @@ public int compareTo(Delayed o) {
 
     @Override
     public String toString() {
-        return "{" +
-                "data='" + data + '\'' +
-                ", startTime=" + startTime +
-                '}';
+        return "{" + "data='" + data + '\'' + ", startTime=" + startTime + '}';
     }
 }

core-java/src/main/java/com/baeldung/designpatterns/adapter/LuxuryCarsSpeed.java

@@ -4,11 +4,11 @@ public class LuxuryCarsSpeed {
     public double bugattiVeyronInMPH() {
         return 268;
     }
-    
+
     public double mcLarenInMPH() {
         return 241;
     }
-    
+
     public double astonMartinInMPH() {
         return 220;
     }

core-java/src/main/java/com/baeldung/designpatterns/adapter/LuxuryCarsSpeedAdapter.java

@@ -2,6 +2,8 @@
 
 public interface LuxuryCarsSpeedAdapter {
     public double bugattiVeyronInKMPH();
+
     public double mcLarenInKMPH();
+
     public double astonMartinInKMPH();
 }

core-java/src/main/java/com/baeldung/designpatterns/bridge/Blue.java

@@ -5,7 +5,7 @@
 public class Blue implements Color {
 
     @Override
-    public void fillColor() { 
+    public void fillColor() {
         LOG.info("Color : Blue");
     }
 

core-java/src/main/java/com/baeldung/designpatterns/decorator/DecoratorPatternDriver.java

@@ -5,16 +5,14 @@
 public class DecoratorPatternDriver {
 
     public static void main(String[] args) {
-        //christmas tree with just one Garland
+        // christmas tree with just one Garland
         ChristmasTree tree1 = new Garland(new ChristmasTreeImpl());
         LOG.info(tree1.decorate());
-
-        //christmas tree with two Garlands and one Bubble lights
-        ChristmasTree tree2 = new BubbleLights(new Garland(
-          new Garland(new ChristmasTreeImpl()))
-        );
+
+        // christmas tree with two Garlands and one Bubble lights
+        ChristmasTree tree2 = new BubbleLights(new Garland(new Garland(new ChristmasTreeImpl())));
         LOG.info(tree2.decorate());
-        
+
     }
 
 }

core-java/src/main/java/com/baeldung/designpatterns/proxy/ExpensiveObjectImpl.java

@@ -7,14 +7,14 @@ public class ExpensiveObjectImpl implements ExpensiveObject {
     public ExpensiveObjectImpl() {
         heavyInitialConfiguration();
     }
-    
+
     @Override
     public void process() {
         LOG.info("processing complete.");
     }
-    
+
     private void heavyInitialConfiguration() {
         LOG.info("Loading initial configuration...");
     }
-    
+
 }

core-java/src/main/java/com/baeldung/forkjoin/CustomRecursiveAction.java

@@ -43,6 +43,7 @@ private Collection<CustomRecursiveAction> createSubtasks() {
 
     private void processing(String work) {
         String result = work.toUpperCase();
-        logger.info("This result - (" + result + ") - was processed by " + Thread.currentThread().getName());
+        logger.info("This result - (" + result + ") - was processed by " + Thread.currentThread()
+            .getName());
     }
 }

core-java/src/main/java/com/baeldung/java/reflection/Greeter.java

@@ -5,6 +5,6 @@
 
 @Retention(RetentionPolicy.RUNTIME)
 public @interface Greeter {
-    
-    public String greet() default ""; 
+
+    public String greet() default "";
 }

core-java/src/main/java/com/baeldung/map/iteration/MapIteration.java

@@ -44,7 +44,8 @@ public void iterateUsingLambda(Map<String, Integer> map) {
     }
 
     public void iterateUsingIteratorAndEntry(Map<String, Integer> map) {
-        Iterator<Map.Entry<String, Integer>> iterator = map.entrySet().iterator();
+        Iterator<Map.Entry<String, Integer>> iterator = map.entrySet()
+            .iterator();
         while (iterator.hasNext()) {
             Map.Entry<String, Integer> pair = iterator.next();
             System.out.println(pair.getKey() + ":" + pair.getValue());
@@ -58,7 +59,9 @@ public void iterateUsingKeySetAndForeach(Map<String, Integer> map) {
     }
 
     public void iterateUsingStreamAPI(Map<String, Integer> map) {
-        map.entrySet().stream().forEach(e -> System.out.println(e.getKey() + ":" + e.getValue()));
+        map.entrySet()
+            .stream()
+            .forEach(e -> System.out.println(e.getKey() + ":" + e.getValue()));
     }
 
     public void iterateKeys(Map<String, Integer> map) {

core-java/src/main/java/com/baeldung/maths/BigIntegerImpl.java

@@ -8,7 +8,7 @@ public static void main(String[] args) {
 
         BigInteger numStarsMilkyWay = new BigInteger("8731409320171337804361260816606476");
         BigInteger numStarsAndromeda = new BigInteger("5379309320171337804361260816606476");
-        
+
         BigInteger totalStars = numStarsMilkyWay.add(numStarsAndromeda);
 
     }

core-java/src/main/java/com/baeldung/networking/cookies/PersistentCookieStore.java

@@ -9,7 +9,8 @@ public class PersistentCookieStore implements CookieStore, Runnable {
     public PersistentCookieStore() {
         store = new CookieManager().getCookieStore();
         // deserialize cookies into store
-        Runtime.getRuntime().addShutdownHook(new Thread(this));
+        Runtime.getRuntime()
+            .addShutdownHook(new Thread(this));
     }
 
     @Override

core-java/src/main/java/com/baeldung/printscreen/Screenshot.java

@@ -14,7 +14,8 @@ public Screenshot(String path) {
     }
 
     public void getScreenshot(int timeToWait) throws Exception {
-        Rectangle rectangle = new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
+        Rectangle rectangle = new Rectangle(Toolkit.getDefaultToolkit()
+            .getScreenSize());
         Robot robot = new Robot();
         BufferedImage img = robot.createScreenCapture(rectangle);
         ImageIO.write(img, "jpg", new File(path));

core-java/src/main/java/com/baeldung/uuid/UUIDGenerator.java

@@ -6,16 +6,16 @@
 import java.util.UUID;
 
 public class UUIDGenerator {
-    
+
     /**
      * These are predefined UUID for name spaces
      */
-    private static final String NAMESPACE_DNS   = "6ba7b810-9dad-11d1-80b4-00c04fd430c8";
-    private static final String NAMESPACE_URL   = "6ba7b811-9dad-11d1-80b4-00c04fd430c8";
-    private static final String NAMESPACE_OID   = "6ba7b812-9dad-11d1-80b4-00c04fd430c8";
-    private static final String NAMESPACE_X500  = "6ba7b814-9dad-11d1-80b4-00c04fd430c8";
+    private static final String NAMESPACE_DNS = "6ba7b810-9dad-11d1-80b4-00c04fd430c8";
+    private static final String NAMESPACE_URL = "6ba7b811-9dad-11d1-80b4-00c04fd430c8";
+    private static final String NAMESPACE_OID = "6ba7b812-9dad-11d1-80b4-00c04fd430c8";
+    private static final String NAMESPACE_X500 = "6ba7b814-9dad-11d1-80b4-00c04fd430c8";
 
-    private static final  char[] hexArray = "0123456789ABCDEF".toCharArray();
+    private static final char[] hexArray = "0123456789ABCDEF".toCharArray();
 
     public static void main(String[] args) {
         try {
@@ -35,7 +35,7 @@ public static UUID generateType4UUID() {
         UUID uuid = UUID.randomUUID();
         return uuid;
     }
-    
+
     /**
      * Type 3 UUID Generation
      * 
@@ -47,7 +47,7 @@ public static UUID generateType3UUID(String namespace, String name) throws Unsup
         UUID uuid = UUID.nameUUIDFromBytes(bytes);
         return uuid;
     }
-    
+
     /**
      * Type 5 UUID Generation
      * 
@@ -59,8 +59,7 @@ public static UUID generateType5UUID(String namespace, String name) throws Unsup
         UUID uuid = type5UUIDFromBytes(bytes);
         return uuid;
     }
-
-
+
     public static UUID type5UUIDFromBytes(byte[] name) {
         MessageDigest md;
         try {
@@ -69,27 +68,26 @@ public static UUID type5UUIDFromBytes(byte[] name) {
             throw new InternalError("MD5 not supported", nsae);
         }
         byte[] bytes = md.digest(name);
-        bytes[6]  &= 0x0f;  /* clear version        */
-        bytes[6]  |= 0x50;  /* set to version 5     */
-        bytes[8]  &= 0x3f;  /* clear variant        */
-        bytes[8]  |= 0x80;  /* set to IETF variant  */
+        bytes[6] &= 0x0f; /* clear version        */
+        bytes[6] |= 0x50; /* set to version 5     */
+        bytes[8] &= 0x3f; /* clear variant        */
+        bytes[8] |= 0x80; /* set to IETF variant  */
         return constructType5UUID(bytes);
     }
-    
+
     private static UUID constructType5UUID(byte[] data) {
         long msb = 0;
         long lsb = 0;
         assert data.length == 16 : "data must be 16 bytes in length";
-        
-        for (int i=0; i<8; i++)
+
+        for (int i = 0; i < 8; i++)
             msb = (msb << 8) | (data[i] & 0xff);
-        
-        for (int i=8; i<16; i++)
+
+        for (int i = 8; i < 16; i++)
             lsb = (lsb << 8) | (data[i] & 0xff);
         return new UUID(msb, lsb);
     }
 
-
     /**
      * Unique Keys Generation Using Message Digest and Type 4 UUID
      * 

core-java/src/test/java/com/baeldung/completablefuture/CompletableFutureLongRunningUnitTest.java

@@ -15,7 +15,6 @@ public class CompletableFutureLongRunningUnitTest {
 
     private static final Logger LOG = LoggerFactory.getLogger(CompletableFutureLongRunningUnitTest.class);
 
-
     @Test
     public void whenRunningCompletableFutureAsynchronously_thenGetMethodWaitsForResult() throws InterruptedException, ExecutionException {
         Future<String> completableFuture = calculateAsync();
@@ -27,11 +26,12 @@ public void whenRunningCompletableFutureAsynchronously_thenGetMethodWaitsForResu
     private Future<String> calculateAsync() throws InterruptedException {
         CompletableFuture<String> completableFuture = new CompletableFuture<>();
 
-        Executors.newCachedThreadPool().submit(() -> {
-            Thread.sleep(500);
-            completableFuture.complete("Hello");
-            return null;
-        });
+        Executors.newCachedThreadPool()
+            .submit(() -> {
+                Thread.sleep(500);
+                completableFuture.complete("Hello");
+                return null;
+            });
 
         return completableFuture;
     }
@@ -47,11 +47,12 @@ public void whenRunningCompletableFutureWithResult_thenGetMethodReturnsImmediate
     private Future<String> calculateAsyncWithCancellation() throws InterruptedException {
         CompletableFuture<String> completableFuture = new CompletableFuture<>();
 
-        Executors.newCachedThreadPool().submit(() -> {
-            Thread.sleep(500);
-            completableFuture.cancel(false);
-            return null;
-        });
+        Executors.newCachedThreadPool()
+            .submit(() -> {
+                Thread.sleep(500);
+                completableFuture.cancel(false);
+                return null;
+            });
 
         return completableFuture;
     }
@@ -98,21 +99,24 @@ public void whenAddingThenApplyToFuture_thenFunctionExecutesAfterComputationIsFi
 
     @Test
     public void whenUsingThenCompose_thenFuturesExecuteSequentially() throws ExecutionException, InterruptedException {
-        CompletableFuture<String> completableFuture = CompletableFuture.supplyAsync(() -> "Hello").thenCompose(s -> CompletableFuture.supplyAsync(() -> s + " World"));
+        CompletableFuture<String> completableFuture = CompletableFuture.supplyAsync(() -> "Hello")
+            .thenCompose(s -> CompletableFuture.supplyAsync(() -> s + " World"));
 
         assertEquals("Hello World", completableFuture.get());
     }
 
     @Test
     public void whenUsingThenCombine_thenWaitForExecutionOfBothFutures() throws ExecutionException, InterruptedException {
-        CompletableFuture<String> completableFuture = CompletableFuture.supplyAsync(() -> "Hello").thenCombine(CompletableFuture.supplyAsync(() -> " World"), (s1, s2) -> s1 + s2);
+        CompletableFuture<String> completableFuture = CompletableFuture.supplyAsync(() -> "Hello")
+            .thenCombine(CompletableFuture.supplyAsync(() -> " World"), (s1, s2) -> s1 + s2);
 
         assertEquals("Hello World", completableFuture.get());
     }
 
     @Test
     public void whenUsingThenAcceptBoth_thenWaitForExecutionOfBothFutures() throws ExecutionException, InterruptedException {
-        CompletableFuture.supplyAsync(() -> "Hello").thenAcceptBoth(CompletableFuture.supplyAsync(() -> " World"), (s1, s2) -> LOG.debug(s1 + s2));
+        CompletableFuture.supplyAsync(() -> "Hello")
+            .thenAcceptBoth(CompletableFuture.supplyAsync(() -> " World"), (s1, s2) -> LOG.debug(s1 + s2));
     }
 
     @Test
@@ -131,7 +135,9 @@ public void whenFutureCombinedWithAllOfCompletes_thenAllFuturesAreDone() throws
         assertTrue(future2.isDone());
         assertTrue(future3.isDone());
 
-        String combined = Stream.of(future1, future2, future3).map(CompletableFuture::join).collect(Collectors.joining(" "));
+        String combined = Stream.of(future1, future2, future3)
+            .map(CompletableFuture::join)
+            .collect(Collectors.joining(" "));
 
         assertEquals("Hello Beautiful World", combined);
     }
@@ -147,7 +153,8 @@ public void whenFutureThrows_thenHandleMethodReceivesException() throws Executio
                 throw new RuntimeException("Computation error!");
             }
             return "Hello, " + name;
-        }).handle((s, t) -> s != null ? s : "Hello, Stranger!");
+        })
+            .handle((s, t) -> s != null ? s : "Hello, Stranger!");
 
         assertEquals("Hello, Stranger!", completableFuture.get());
     }

core-java/src/test/java/com/baeldung/datetime/UseLocalDateTimeUnitTest.java

@@ -15,7 +15,9 @@ public class UseLocalDateTimeUnitTest {
 
     @Test
     public void givenString_whenUsingParse_thenLocalDateTime() {
-        assertEquals(LocalDate.of(2016, Month.MAY, 10), useLocalDateTime.getLocalDateTimeUsingParseMethod("2016-05-10T06:30").toLocalDate());
-        assertEquals(LocalTime.of(6, 30), useLocalDateTime.getLocalDateTimeUsingParseMethod("2016-05-10T06:30").toLocalTime());
+        assertEquals(LocalDate.of(2016, Month.MAY, 10), useLocalDateTime.getLocalDateTimeUsingParseMethod("2016-05-10T06:30")
+            .toLocalDate());
+        assertEquals(LocalTime.of(6, 30), useLocalDateTime.getLocalDateTimeUsingParseMethod("2016-05-10T06:30")
+            .toLocalTime());
     }
 }