Complete Refactor of File Directories

.gitignore

@@ -2,15 +2,17 @@
 2018 - 2019/.DS_Store
 Java Fundamentals/.DS_Store
 Java Classes & Interfaces/.DS_Store
-Learning Java.code-workspace
-Personal/Test Driven Development/Hello World/.classpath
 .vscode/settings.json
-Personal/Test Driven Development/Hello World/.project
-Personal/Test Driven Development/Hello World/pom.xml
-Personal/Test Driven Development/Hello World/.settings/org.eclipse.core.resources.prefs
-Personal/Test Driven Development/Hello World/.settings/org.eclipse.jdt.apt.core.prefs
-Personal/Test Driven Development/Hello World/.settings/org.eclipse.jdt.core.prefs
-Personal/Test Driven Development/Hello World/.settings/org.eclipse.m2e.core.prefs
 /.idea/
 /out/
 /Java Streams/Java Streams.iml
+/2018 - 2019/2018 - 2019.iml
+/Design Patterns/Design Patterns.iml
+/Java Classes & Interfaces/Java Classes & Interfaces.iml
+/Java Collections/Java Collections.iml
+/Learning-Java.iml
+/Personal/Personal.iml
+/Personal/src/tdd/helloworld/HelloWorld.iml
+/Java Fundamentals/Java Fundamentals.iml
+/Java Sets/Java Sets.iml
+/Personal/src/tdd/helloworld/pom.xml

2018 - 2019/src/arrays/SimpleArrays.java

@@ -1,3 +1,5 @@
+package arrays;
+
 import java.util.Scanner;
 
 public class SimpleArrays {

2018 - 2019/src/conditionals/ConditionalStatements.java

@@ -1,3 +1,5 @@
+package conditionals;
+
 import java.util.Scanner;
 
 public class ConditionalStatements {

2018 - 2019/src/scanner/UsingScanner.java

@@ -1,3 +1,5 @@
+package scanner;
+
 import java.util.Scanner;
 
 public class UsingScanner {

2018 - 2019/src/strings/WorkingWithStrings.java

@@ -1,3 +1,5 @@
+package strings;
+
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
 import java.util.Arrays;

Design Patterns/src/singleton/Main.java

@@ -0,0 +1,14 @@
+package singleton;
+
+public class Main {
+    public static void main(String[] args) {
+
+        // Illegal construct
+        // Compile Time Error: The constructor SingleObject() is not visible
+        // SingleObject object = new SingleObject();
+
+        SingleObject singleObject = SingleObject.getInstance();
+        singleObject.showMessage();
+
+    }
+}

Design Patterns/src/singleton/SingleObject.java

@@ -0,0 +1,17 @@
+package singleton;
+
+public class SingleObject {
+
+    private static final SingleObject instance = new SingleObject();
+
+    private SingleObject() {
+    }
+
+    public static SingleObject getInstance() {
+        return instance;
+    }
+
+    public void showMessage() {
+        System.out.println("Hello World!");
+    }
+}

Java Classes & Interfaces/src/interfaces/animals/Animal.java

@@ -1,4 +1,4 @@
-package src;
+package interfaces.animals;
 
 public interface Animal {
     

Java Classes & Interfaces/src/interfaces/animals/AnimalHelper.java

@@ -1,4 +1,4 @@
-package src;
+package interfaces.animals;
 
 public class AnimalHelper {
 

Java Classes & Interfaces/src/interfaces/animals/AnimalMain.java

@@ -1,4 +1,4 @@
-package src;
+package interfaces.animals;
 
 public class AnimalMain {
     public static void main(String[] args) {

Java Classes & Interfaces/src/interfaces/animals/Cat.java

@@ -1,4 +1,4 @@
-package src;
+package interfaces.animals;
 
 public class Cat implements Animal {
 

Java Classes & Interfaces/src/interfaces/animals/Cow.java

@@ -1,4 +1,4 @@
-package src;
+package interfaces.animals;
 
 public class Cow implements Animal {
 

Java Classes & Interfaces/src/interfaces/animals/Dog.java

@@ -1,4 +1,4 @@
-package src;
+package interfaces.animals;
 
 public class Dog implements Animal {
 

Java Classes & Interfaces/src/interfaces/animals/Horse.java

@@ -1,4 +1,4 @@
-package src;
+package interfaces.animals;
 
 public class Horse implements Animal {
 

Java Classes & Interfaces/src/interfaces/counter/ByFives.java

@@ -1,4 +1,4 @@
-package src;
+package interfaces.counter;
 
 public class ByFives implements Counter {
 

Java Classes & Interfaces/src/interfaces/counter/ByFours.java

@@ -1,4 +1,4 @@
-package src;
+package interfaces.counter;
 
 public class ByFours implements Counter {
 

Java Classes & Interfaces/src/interfaces/counter/ByOnes.java

@@ -1,4 +1,4 @@
-package src;
+package interfaces.counter;
 
 public class ByOnes implements Counter {
 

Java Classes & Interfaces/src/interfaces/counter/ByThrees.java

@@ -1,4 +1,4 @@
-package src;
+package interfaces.counter;
 
 public class ByThrees implements Counter {
 

Java Classes & Interfaces/src/interfaces/counter/ByTwos.java

@@ -1,4 +1,4 @@
-package src;
+package interfaces.counter;
 
 public class ByTwos implements Counter {
 

Java Classes & Interfaces/src/interfaces/counter/Counter.java

@@ -1,4 +1,4 @@
-package src;
+package interfaces.counter;
 
 public interface Counter {
     

Java Classes & Interfaces/src/interfaces/counter/CounterHelper.java

@@ -1,4 +1,4 @@
-package src;
+package interfaces.counter;
 
 public class CounterHelper {
     

Java Classes & Interfaces/src/interfaces/counter/CounterMain.java

@@ -1,4 +1,4 @@
-package src;
+package interfaces.counter;
 
 import java.util.Scanner;
 

Java Classes & Interfaces/src/pluralsite/calculatorengine/Adder.java

@@ -1,4 +1,4 @@
-package src;
+package pluralsite.calculatorengine;
 
 public class Adder extends CalculateBase implements MathProcessing {
 

Java Classes & Interfaces/src/pluralsite/calculatorengine/CalculateBase.java

@@ -1,4 +1,4 @@
-package src;
+package pluralsite.calculatorengine;
 
 public abstract class CalculateBase {
     private double leftVal;

Java Classes & Interfaces/src/pluralsite/calculatorengine/Divider.java

@@ -1,4 +1,4 @@
-package src;
+package pluralsite.calculatorengine;
 
 public class Divider extends CalculateBase {
 

Java Classes & Interfaces/src/pluralsite/calculatorengine/DynamicHelper.java

@@ -1,4 +1,4 @@
-package src;
+package pluralsite.calculatorengine;
 
 public class DynamicHelper {
 

Java Classes & Interfaces/src/pluralsite/calculatorengine/MathEquation.java

@@ -1,4 +1,4 @@
-package src;
+package pluralsite.calculatorengine;
 
 public class MathEquation {
     private double leftVal;

Java Classes & Interfaces/src/pluralsite/calculatorengine/MathOperation.java

@@ -1,4 +1,4 @@
-package src;
+package pluralsite.calculatorengine;
 
 public enum MathOperation {
     ADD, SUBTRACT, DIVIDE, MULTIPLY

Java Classes & Interfaces/src/pluralsite/calculatorengine/MathProcessing.java

@@ -1,4 +1,4 @@
-package src;
+package pluralsite.calculatorengine;
 
 public interface MathProcessing {
 

Java Classes & Interfaces/src/pluralsite/calculatorengine/Multiplier.java

@@ -1,4 +1,4 @@
-package src;
+package pluralsite.calculatorengine;
 
 public class Multiplier extends CalculateBase {
 

Java Classes & Interfaces/src/pluralsite/calculatorengine/NewCalcEngine.java

@@ -1,4 +1,4 @@
-package src;
+package pluralsite.calculatorengine;
 
 import java.util.Scanner;
 

Java Classes & Interfaces/src/pluralsite/calculatorengine/PowerOf.java

@@ -1,4 +1,4 @@
-package src;
+package pluralsite.calculatorengine;
 
 public class PowerOf implements MathProcessing {
 

Java Classes & Interfaces/src/pluralsite/calculatorengine/Subtractor.java

@@ -1,4 +1,4 @@
-package src;
+package pluralsite.calculatorengine;
 
 public class Subtractor extends CalculateBase {
 

Java Fundamentals/Get Organised/src/com/pluralsite/getorganised/GetOrganised.java

@@ -1,7 +0,0 @@
-package com.pluralsite.getorganised;
-
-public class GetOrganised {
-    public static void main(String[] args) throws Exception {
-        System.out.println("I'm organised!");
-    }
-}

Java Fundamentals/src/calculatorengine/CalcEngine.java

@@ -1,3 +1,5 @@
+package calculatorengine;
+
 import java.time.LocalDate;
 import java.time.format.DateTimeFormatter;
 import java.util.Scanner;

Java Fundamentals/src/helloworld/HelloWorld.java

@@ -1,3 +1,5 @@
+package helloworld;
+
 public class HelloWorld {
     public static void main(String[] args) {
         System.out.println("Hello, World!");

Java Fundamentals/src/operatorprecedence/OperatorPrecedence.java

@@ -1,3 +1,5 @@
+package operatorprecedence;
+
 public class OperatorPrecedence {
     public static void main(String[] args) {
 

Java Fundamentals/src/organised/com/pluralsite/getorganised/GetOrganised.java

@@ -0,0 +1,7 @@
+package organised.com.pluralsite.getorganised;
+
+public class GetOrganised {
+    public static void main(String[] args) {
+        System.out.println("I'm organised!");
+    }
+}

Java Sets/src/common/Product.java

@@ -0,0 +1,28 @@
+package common;
+
+import java.util.Comparator;
+
+public class Product {
+    private final String name;
+    private final int weight;
+
+    public Product(String name, int weight) {
+        this.name = name;
+        this.weight = weight;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public int getWeight() {
+        return weight;
+    }
+
+    @Override
+    public String toString() {
+        return "Product{" + "name='" + name + '\'' + ", weight=" + weight + '}';
+    }
+
+    public static final Comparator<Product> BY_WEIGHT = Comparator.comparingInt(Product::getWeight);
+}

Java Sets/src/common/Supplier.java

@@ -0,0 +1,26 @@
+package common;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Supplier {
+    private final String name;
+    private final List<Product> products = new ArrayList<>();
+
+    public Supplier(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public List<Product> getProducts() {
+        return products;
+    }
+
+    @Override
+    public String toString() {
+        return "Supplier{" + "name='" + name + '\'' + ", products=" + products + '}';
+    }
+}

Personal/Anagram/.idea/.gitignore

@@ -1,8 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml
-# Datasource local storage ignored files
-/../../../../../../../../:\Users\sgoud\JavaProjects\Learning-Java\Personal\Anagram\.idea/dataSources/
-/dataSources.local.xml
-# Editor-based HTTP Client requests
-/httpRequests/

Personal/Anagram/.idea/aws.xml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="accountSettings">
-    <option name="activeRegion" value="us-east-1" />
-    <option name="recentlyUsedRegions">
-      <list>
-        <option value="us-east-1" />
-      </list>
-    </option>
-  </component>
-</project>

Personal/Anagram/.idea/discord.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="DiscordProjectSettings">
-    <option name="show" value="PROJECT_FILES" />
-  </component>
-</project>

Personal/Anagram/.idea/misc.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_15" project-jdk-name="15" project-jdk-type="JavaSDK">
-    <output url="file://$PROJECT_DIR$/out" />
-  </component>
-</project>

Personal/Anagram/.idea/modules.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/Anagram.iml" filepath="$PROJECT_DIR$/Anagram.iml" />
-    </modules>
-  </component>
-</project>

Personal/Anagram/.idea/vcs.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$/../.." vcs="Git" />
-  </component>
-</project>

Personal/Anagram/Anagram.iml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$" isTestSource="false" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>

Personal/Anagram/out/production/Anagram/.idea/.gitignore

@@ -1,8 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml
-# Datasource local storage ignored files
-/../../../../../../../../:\Users\sgoud\JavaProjects\Learning-Java\Personal\Anagram\.idea/dataSources/
-/dataSources.local.xml
-# Editor-based HTTP Client requests
-/httpRequests/

Personal/Anagram/out/production/Anagram/.idea/aws.xml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="accountSettings">
-    <option name="activeRegion" value="us-east-1" />
-    <option name="recentlyUsedRegions">
-      <list>
-        <option value="us-east-1" />
-      </list>
-    </option>
-  </component>
-</project>

Personal/Anagram/out/production/Anagram/.idea/misc.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_15" project-jdk-name="15" project-jdk-type="JavaSDK">
-    <output url="file://$PROJECT_DIR$/out" />
-  </component>
-</project>

Personal/Anagram/out/production/Anagram/.idea/modules.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/Anagram.iml" filepath="$PROJECT_DIR$/Anagram.iml" />
-    </modules>
-  </component>
-</project>

Personal/Anagram/out/production/Anagram/.idea/vcs.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$/../.." vcs="Git" />
-  </component>
-</project>

Personal/Anagram/out/production/Anagram/Anagram.iml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$" isTestSource="false" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>

Personal/src/anagram/AnagramGenerator.java

@@ -1,8 +1,8 @@
-package src;
+package anagram;
 
-import java.util.Scanner;
 import java.util.ArrayList;
 import java.util.Random;
+import java.util.Scanner;
 
 public class AnagramGenerator {
 

Personal/src/cards/Card.java

@@ -1,3 +1,5 @@
+package cards;
+
 public class Card {
 
     private String suit;

Personal/src/cards/CardMain.java

@@ -1,3 +1,5 @@
+package cards;
+
 import java.util.List;
 import java.util.Scanner;
 

Personal/src/cards/Deck.java

@@ -1,9 +1,11 @@
+package cards;
+
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 
 public abstract class Deck {
-    private List<Card> deck = new ArrayList<Card>();
+    private final List<Card> deck = new ArrayList<Card>();
 
     public Deck() {
         for (Suits suit : Suits.values()) {
@@ -14,7 +16,7 @@ public abstract class Deck {
 
     public List<Player> dealCards(int numOfPlayers) {
         int noOfCards = (deck.size() / numOfPlayers) + 1;
-        List<Player> allPlayers = new ArrayList<Player>();
+        List<Player> allPlayers = new ArrayList<>();
 
         for (int i = 0; i < numOfPlayers; i++) {
             Hand playerHand = new Hand();
@@ -23,7 +25,7 @@ public abstract class Deck {
                 playerHand.addCard(indexCard);
                 dealACard(indexCard);
             }
-            allPlayers.add(new Player("Player " + i, playerHand));
+            allPlayers.add(new Player(playerHand));
         }
         return allPlayers;
     }

Personal/src/cards/Faces.java

@@ -1,3 +1,5 @@
+package cards;
+
 public enum Faces {
     ACE(1), TWO(2), THREE(3), FOUR(4), FIVE(5), SIX(6), SEVEN(7), EIGHT(8), NINE(9), TEN(10), JACK(11), QUEEN(12),
     KING(13);

Personal/src/cards/Hand.java

@@ -1,3 +1,5 @@
+package cards;
+
 import java.util.ArrayList;
 import java.util.List;
 
@@ -9,17 +11,17 @@ public class Hand {
 
     @Override
     public String toString() {
-        StringBuilder handofSuit = new StringBuilder();
+        StringBuilder handOfSuit = new StringBuilder();
 
-        handofSuit.append("[");
+        handOfSuit.append("[");
         for (Card card : listOfCards) {
-            handofSuit.append(card.getFace() + ",");
+            handOfSuit.append(card.getFace()).append(",");
         }
-        if (handofSuit.length() != 1)
+        if (handOfSuit.length() != 1)
-            handofSuit.deleteCharAt(handofSuit.length() - 1);
+            handOfSuit.deleteCharAt(handOfSuit.length() - 1);
-        handofSuit.append("]");
+        handOfSuit.append("]");
 
-        return handofSuit.toString();
+        return handOfSuit.toString();
 
     }
 

Personal/src/cards/Player.java

@@ -1,7 +1,9 @@
+package cards;
+
 public class Player {
     private Hand hand;
 
-    public Player(String name, Hand hand) {
+    public Player(Hand hand) {
         this.hand = hand;
     }
 
@@ -12,7 +14,7 @@ public class Player {
             Card card = hand.getListOfCards().get(i);
 
             if (i % 2 == 0) {
-                System.out.printf(tab + card.getFace() + " of " + card.getSuit());
+                System.out.print(tab + card.getFace() + " of " + card.getSuit());
             } else {
                 System.out.println(tab + card.getFace() + " of " + card.getSuit());
             }

Personal/src/cards/Sevens.java

@@ -1,3 +1,5 @@
+package cards;
+
 import java.util.List;
 import java.util.Scanner;
 
@@ -20,7 +22,7 @@ public class Sevens extends Deck {
             System.out.println("\nPlayer " + (playerCounter + 1) + "'s Deck:\n");
             player.displayHand();
 
-            String[] userCardSplit = askPlayer(playerCounter, player, tableHand, in);
+            String[] userCardSplit = askPlayer(in);
             if (userCardSplit.length != 0) {
                 validateCard(userCardSplit, player, tableHand);
 
@@ -34,7 +36,7 @@ public class Sevens extends Deck {
         tableHand.display("Winning Deck:");
     }
 
-    public String[] askPlayer(int playerCounter, Player player, TableHand tableHand, Scanner in) {
+    public String[] askPlayer(Scanner in) {
         System.out.println("\nEnter In The Card That You Want To Play: \nPress S To Skip");
         String userCard = in.nextLine();
         if (userCard.toLowerCase().charAt(0) == 's') {
@@ -44,13 +46,13 @@ public class Sevens extends Deck {
 
         String[] splitCard = userCard.split(" ");
         if (splitCard.length == 2)
-            validatePlayerInput(splitCard, player, tableHand, in);
+            validatePlayerInput(splitCard, in);
 
         return splitCard;
 
     }
 
-    public void validatePlayerInput(String[] splitCard, Player player, TableHand tableHand, Scanner in) {
+    public void validatePlayerInput(String[] splitCard, Scanner in) {
 
         try {
             Integer.parseInt(splitCard[0]);
@@ -71,7 +73,7 @@ public class Sevens extends Deck {
                     break;
                 }
             }
-            if (validSuit == false) {
+            if (!validSuit) {
                 System.out.println("Card Suit Not Valid! Please Enter A Suitable Suit");
                 splitCard[1] = in.nextLine();
             }
@@ -102,7 +104,6 @@ public class Sevens extends Deck {
                 playACard(userSuitHand, cardToBePlayed, 0, player);
             } else {
                 System.out.println("Card Played Was Not A Face of 7 in Empty Suit! Turn Skipped!");
-                return;
             }
         } else {
             int minimumValueInUserSuitHand = userSuitHand.getListOfCards().get(0).getFace();
@@ -114,8 +115,7 @@ public class Sevens extends Deck {
             } else if (cardToBePlayed.getFace() == (maximumValueInUserSuitHand + 1)) {
                 playACard(userSuitHand, cardToBePlayed, sizeOfUserSuitHand, player);
             } else {
-                System.out.println("Card Plyaed Was Not +1 or +1 Of Any Cards In The Suit! Turn Skipped!");
+                System.out.println("Card Played Was Not +1 or +1 Of Any Cards In The Suit! Turn Skipped!");
-                return;
             }
         }
     }

Personal/src/cards/Suits.java

@@ -1,3 +1,5 @@
+package cards;
+
 public enum Suits {
     SPADES("Spades"), HEARTS("Hearts"), DIAMONDS("Diamonds"), CLUBS("Clubs");
 

Personal/src/cards/TableHand.java

@@ -1,9 +1,11 @@
+package cards;
+
 import java.util.EnumMap;
 import java.util.Map.Entry;
 
 public class TableHand extends Hand {
 
-    private EnumMap<Suits, Hand> sevensTableHand = new EnumMap<Suits, Hand>(Suits.class);
+    private EnumMap<Suits, Hand> sevensTableHand = new EnumMap<>(Suits.class);
 
     public TableHand() {
         for (Suits suit : Suits.values()) {

Personal/src/oop/Coordinates.java

@@ -1,3 +1,5 @@
+package oop;
+
 public class Coordinates {
     private int x;
     private int y;

Personal/src/oop/Equation.java

@@ -1,3 +1,5 @@
+package oop;
+
 public interface Equation {
     void displayEquation();
 }

Personal/src/oop/Line.java

@@ -1,3 +1,5 @@
+package oop;
+
 public class Line implements Equation {
     private double gradient;
     private double intercept;

Personal/src/oop/Main.java

@@ -1,3 +1,5 @@
+package oop;
+
 public class Main {
     public static void main(String[] args) {
         Coordinates coordinate1 = new Coordinates(4, 16);

Personal/src/tdd/helloworld/src/main/java/hello/world/Greeting.java

@@ -1,4 +1,4 @@
-package main.java.hello.world;
+package tdd.helloworld.src.main.java.hello.world;
 
 public class Greeting {
     String message;

Personal/src/tdd/helloworld/src/main/java/hello/world/HelloWorld.java

@@ -1,4 +1,4 @@
-package main.java.hello.world;
+package tdd.helloworld.src.main.java.hello.world;
 
 /**
  * Hello world!

Personal/src/tdd/helloworld/src/test/java/hello/world/HelloWorldTest.java

@@ -1,9 +1,10 @@
-package test.java.hello.world;
+package tdd.helloworld.src.test.java.hello.world;
 
-import main.java.hello.world.Greeting;
 import org.junit.Test;
+import tdd.helloworld.src.main.java.hello.world.Greeting;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
 
 /**
  * Unit test for simple App.
@@ -21,6 +22,6 @@ public class HelloWorldTest {
     @Test
     public void greetingMessageShouldFail() {
         Greeting greeting = new Greeting("Not Hello World");
-        assertEquals("Hello World", greeting.getMessage());
+        assertNotEquals("Hello World", greeting.getMessage());
     }
 }