diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..537eaa0
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,34 @@
+### IntelliJ IDEA ###
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+*.idea
+.idea
+*.iml
+
+target/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 0000000..094b135
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<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>groupId</groupId>
+    <artifactId>lab-java-intro-to-testing</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>1.18.30</version>
+            <scope>provided</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <version>5.10.2</version>
+            <scope>test</scope>
+        </dependency>
+
+
+    </dependencies>
+
+</project>
\ No newline at end of file
diff --git a/src/main/java/Elf.java b/src/main/java/Elf.java
new file mode 100644
index 0000000..8e8d30e
--- /dev/null
+++ b/src/main/java/Elf.java
@@ -0,0 +1,19 @@
+import lombok.*;
+
+@Getter
+public class Elf extends Player {
+
+    public static final int DEFAULT_SPEED = 10;
+
+    private int speed;
+
+    public Elf(int health, int strength, int lives, int speed) {
+        super(health, strength, lives);
+        this.speed = speed;
+    }
+
+    public Elf(int health, int strength, int lives) {
+        super(health, strength, lives);
+        this.speed = DEFAULT_SPEED;
+    }
+}
diff --git a/src/main/java/Player.java b/src/main/java/Player.java
new file mode 100644
index 0000000..6bbc158
--- /dev/null
+++ b/src/main/java/Player.java
@@ -0,0 +1,34 @@
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public abstract class Player {
+    public Player(int health, int strength, int lives) {
+        this.health = health;
+        this.strength = strength;
+        this.lives = lives;
+        initialHealth = health;
+    }
+
+    private final int initialHealth;
+    private int health;
+    private int strength;
+    private int lives;
+
+    public void attack(Player playerToAttack) {
+        playerToAttack.setHealth(playerToAttack.getHealth() - strength);
+        playerToAttack.checkHealth();
+    }
+
+    public void decrementLive(){
+        lives--;
+        health = 3;
+        if (lives <= 0) System.out.println("This character is dead");
+    }
+
+    public void checkHealth() {
+        if (health <= 0) decrementLive();
+    }
+
+}
diff --git a/src/main/java/Utils.java b/src/main/java/Utils.java
new file mode 100644
index 0000000..ca93458
--- /dev/null
+++ b/src/main/java/Utils.java
@@ -0,0 +1,29 @@
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.IntStream;
+import java.util.stream.Stream;
+
+public class Utils {
+
+
+    public static int[] getOddsFromOneToValue(int value) {
+        return IntStream.rangeClosed(1, value)
+                .filter(n -> n % 2 != 0)
+                .toArray();
+    }
+
+    public boolean containsKeyWord(String s) {
+        List<String> keywordsList = Arrays.asList(
+                "abstract", "continue", "for", "new", "switch", "assert", "default", "goto",
+                "package", "synchronized", "boolean", "do", "if", "private", "this", "break",
+                "double", "implements", "protected", "throw", "byte", "else", "import", "public",
+                "throws", "case", "enum", "instanceof", "return", "transient", "catch", "extends",
+                "int", "short", "try", "char", "final", "interface", "static", "void", "class",
+                "finally", "long", "strictfp", "volatile", "const", "float", "native", "super", "while"
+        );
+
+        return Arrays.stream(s.split(" ")).anyMatch(word -> keywordsList.contains(word));
+    }
+
+}
diff --git a/src/main/java/Warrior.java b/src/main/java/Warrior.java
new file mode 100644
index 0000000..512258a
--- /dev/null
+++ b/src/main/java/Warrior.java
@@ -0,0 +1,17 @@
+import lombok.Getter;
+
+@Getter
+public class Warrior extends Player {
+
+    private int force;
+
+    public Warrior(int health, int strength, int lives, int force) {
+        super(health, strength, lives);
+        this.force = force;
+    }
+
+    public Elf convertToElf(){
+        return new Elf(getHealth(), getStrength(), getLives());
+    }
+
+}
diff --git a/src/main/java/Wizard.java b/src/main/java/Wizard.java
new file mode 100644
index 0000000..7b046fe
--- /dev/null
+++ b/src/main/java/Wizard.java
@@ -0,0 +1,27 @@
+import lombok.Getter;
+
+
+
+@Getter
+public class Wizard extends Player {
+
+    private int spell;
+
+    public Wizard(int health, int strength, int lives, int spell) {
+        super(health, strength, lives);
+        this.spell = spell;
+    }
+
+    public Elf convertToElf(){
+        return new Elf(getHealth(), getStrength(), getLives());
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Wizard wizard = (Wizard) o;
+        return spell == wizard.spell;
+    }
+
+}
diff --git a/src/test/java/PlayerTest.java b/src/test/java/PlayerTest.java
new file mode 100644
index 0000000..f957df6
--- /dev/null
+++ b/src/test/java/PlayerTest.java
@@ -0,0 +1,88 @@
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+public class PlayerTest {
+
+    Warrior warrior;
+    Wizard wizard;
+    Elf elf;
+
+    @Test
+    @DisplayName("Should create a warrior and convert it into an elf with the exact feature values and the default speed")
+    void convertWarriorToElf() {
+        warrior = new Warrior(100, 10, 3, 5);
+
+        elf = warrior.convertToElf();
+
+        assertTrue(warrior instanceof Warrior);
+        assertEquals(5, warrior.getForce());
+
+        assertTrue(elf instanceof Elf);
+
+        assertEquals(warrior.getHealth(), warrior.getInitialHealth());
+        assertEquals(warrior.getHealth(), elf.getHealth());
+        assertEquals(warrior.getStrength(), elf.getStrength());
+        assertEquals(warrior.getLives(), elf.getLives());
+        assertEquals(Elf.DEFAULT_SPEED, elf.getSpeed());
+    }
+
+    @Test
+    @DisplayName("Should create a wizard and convert it into an elf with the exact feature values and the default speed")
+    void convertWizardToElf() {
+        wizard = new Wizard(100, 10, 3, 5);
+
+        elf = wizard.convertToElf();
+
+        assertTrue(wizard instanceof Wizard);
+        assertEquals(5, wizard.getSpell());
+
+        assertTrue(elf instanceof Elf);
+        assertEquals(100, elf.getHealth());
+        assertEquals(10, elf.getStrength());
+        assertEquals(3, elf.getLives());
+
+        assertEquals(Elf.DEFAULT_SPEED, elf.getSpeed());
+    }
+
+    @Test
+    @DisplayName("Should create a copy of one wizard with the same feature values")
+    void createTwoDifferentWizards() {
+        Wizard wizard = new Wizard(100, 10, 3, 5);
+        Wizard wizardCopy = new Wizard(100, 10, 3, 5);
+
+        assertTrue(wizard.equals(wizardCopy));
+    }
+    @Test
+    @DisplayName("An Elf should attack a warrior and a wizard and decrease their health by -25")
+    void decrementHealth() {
+        wizard = new Wizard(80, 40, 3, 5);
+        warrior = new Warrior(100, 90, 3, 5);
+        elf = new Elf(300, 25, 3 ,5);
+        int initialWarriorHealth = warrior.getHealth();
+        int initialWizardHealth = wizard.getHealth();
+
+        elf.attack(warrior);
+        elf.attack(wizard);
+
+        assertEquals(initialWarriorHealth - elf.getStrength(), warrior.getHealth());
+        assertEquals(initialWizardHealth - elf.getStrength(), wizard.getHealth());
+    }
+
+    @Test
+    @DisplayName("An elf should kill a warrior")
+    void decrementLive() {
+        warrior = new Warrior(100, 90, 3, 5);
+        elf = new Elf(300, 25, 3 ,5);
+        int initialWarriorLives = warrior.getLives();
+
+        elf.attack(warrior);
+        elf.attack(warrior);
+        elf.attack(warrior);
+        elf.attack(warrior);
+
+        assertEquals(initialWarriorLives - 1, warrior.getLives());
+    }
+}
diff --git a/src/test/java/UtilsTest.java b/src/test/java/UtilsTest.java
new file mode 100644
index 0000000..106c6b0
--- /dev/null
+++ b/src/test/java/UtilsTest.java
@@ -0,0 +1,31 @@
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class UtilsTest {
+
+    private Utils utils;
+
+
+    @BeforeEach
+    public void setUp() {
+        utils = new Utils();
+    }
+
+    @Test
+    @DisplayName("Should take an integer n and return all odd integers from 1 to n")
+    void getOddsFromOneToValue()  {
+        assertEquals(Utils.getOddsFromOneToValue(3).length, 2);
+        assertEquals(Utils.getOddsFromOneToValue(5).length, 3);
+    }
+
+    @Test
+    @DisplayName("Should return true when receive a String containing a keyword")
+    void containsKeyWord()  {
+        assertTrue(utils.containsKeyWord("Don't break my heart"));
+        assertFalse(utils.containsKeyWord("I love to breakdance"));
+    }
+
+}
\ No newline at end of file