diff --git a/src1/pom.xml b/src1/pom.xml
new file mode 100644
index 0000000..59f1969
--- /dev/null
+++ b/src1/pom.xml
@@ -0,0 +1,52 @@
+<?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>org.example</groupId>
+    <artifactId>src1</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <dependencies>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <version>${junit.jupiter.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-params</artifactId>
+            <version>${junit.jupiter.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <version>${junit.jupiter.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <!-- Mockito 5 -->
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-core</artifactId>
+            <version>2.25.0</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.hamcrest</groupId>
+            <artifactId>hamcrest-all</artifactId>
+            <version>1.3</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <skipTests>false</skipTests>
+        <!-- Testing related properties -->
+        <junit.jupiter.version>5.4.0-RC1</junit.jupiter.version>
+    </properties>
+
+</project>
\ No newline at end of file
diff --git a/src1/src/main/java/Elf.java b/src1/src/main/java/Elf.java
new file mode 100644
index 0000000..46d4eeb
--- /dev/null
+++ b/src1/src/main/java/Elf.java
@@ -0,0 +1,16 @@
+public class Elf extends Player {
+    private int speed;
+
+    public Elf(int health, int strength, int lives, int speed) {
+        super(health, strength, lives);
+        this.speed = speed;
+    }
+
+    public int getSpeed() {
+        return speed;
+    }
+
+    public void setSpeed(int speed) {
+        this.speed = speed;
+    }
+}
diff --git a/src1/src/main/java/JavaKeyWordChecker.java b/src1/src/main/java/JavaKeyWordChecker.java
new file mode 100644
index 0000000..5bd72a1
--- /dev/null
+++ b/src1/src/main/java/JavaKeyWordChecker.java
@@ -0,0 +1,25 @@
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+
+public class JavaKeyWordChecker {
+
+    private static final Set<String> JAVA_KEYWORDS = new HashSet<>(Arrays.asList(
+            "abstract", "assert", "boolean", "break", "byte", "case", "catch", "char", "class",
+            "const", "continue", "default", "do", "double", "else", "enum", "exports", "extends",
+            "final", "finally", "float", "for", "goto", "if", "implements", "import", "instanceof",
+            "int", "interface", "long", "module", "native", "new", "package", "private", "protected",
+            "public", "requires", "return", "short", "static", "strictfp", "super", "switch",
+            "synchronized", "this", "throw", "throws", "transient", "try", "var", "void", "volatile", "while"
+    ));
+
+    public static boolean containsJavaKeyword(String input) {
+        String[] words = input.split("\\W+");
+        for (String word : words) {
+            if (JAVA_KEYWORDS.contains(word)) {
+                return true;
+            }
+        }
+        return false;
+    }
+}
diff --git a/src1/src/main/java/Main.java b/src1/src/main/java/Main.java
new file mode 100644
index 0000000..a26a894
--- /dev/null
+++ b/src1/src/main/java/Main.java
@@ -0,0 +1,14 @@
+public class Main {
+    public static void main(String[] args) {
+        Warrior warrior1 = new Warrior(100, 20, 3,40);
+        Warrior warrior2 = new Warrior(80, 15, 2,60);
+
+        warrior1.attack(warrior2);
+        System.out.println("Warrior2 Health: " + warrior2.getHealth());
+        System.out.println("Warrior2 Lives: " + warrior2.getLives());
+
+        warrior2.attack(warrior1);
+        System.out.println("Warrior1 Health: " + warrior1.getHealth());
+        System.out.println("Warrior1 Lives: " + warrior1.getLives());
+    }
+}
diff --git a/src1/src/main/java/OddNumbers.java b/src1/src/main/java/OddNumbers.java
new file mode 100644
index 0000000..3c8fb9e
--- /dev/null
+++ b/src1/src/main/java/OddNumbers.java
@@ -0,0 +1,11 @@
+public class OddNumbers {
+    public static int[] getOddIntegers(int n) {
+        if (n < 1) {
+            return new int[0];
+        }
+
+        return java.util.stream.IntStream.rangeClosed(1, n)
+                .filter(i -> i % 2 != 0)
+                .toArray();
+    }
+}
diff --git a/src1/src/main/java/Player.java b/src1/src/main/java/Player.java
new file mode 100644
index 0000000..642cf20
--- /dev/null
+++ b/src1/src/main/java/Player.java
@@ -0,0 +1,63 @@
+public abstract class Player {
+    private int health;
+    private int originalHealth;
+    private int strength;
+    private int lives;
+
+    public Player(int health, int strength, int lives) {
+        this.health = health;
+        this.originalHealth = health;  // Store the original health
+        this.strength = strength;
+        this.lives = lives;
+    }
+
+    // Getters
+    public int getHealth() {
+        return health;
+    }
+
+    public int getStrength() {
+        return strength;
+    }
+
+    public int getLives() {
+        return lives;
+    }
+
+    // Setters
+    public void setHealth(int health) {
+        this.health = health;
+    }
+
+    public void setStrength(int strength) {
+        this.strength = strength;
+    }
+
+    public void setLives(int lives) {
+        this.lives = lives;
+    }
+
+    // Method to decrement lives and restore health
+    public void decrementLive() {
+        if (lives > 0) {
+            lives--;
+            health = originalHealth;
+            if (lives <= 0) {
+                System.out.println("This character is dead");
+            }
+        }
+    }
+
+    // Method to attack another player
+    public void attack(Player playerToAttack) {
+        playerToAttack.setHealth(playerToAttack.getHealth() - this.strength);
+        playerToAttack.checkHealth();
+    }
+
+    // Method to check health and call decrementLive() if health is 0 or less
+    public void checkHealth() {
+        if (this.health <= 0) {
+            decrementLive();
+        }
+    }
+}
diff --git a/src1/src/main/java/Warrior.java b/src1/src/main/java/Warrior.java
new file mode 100644
index 0000000..db64f5f
--- /dev/null
+++ b/src1/src/main/java/Warrior.java
@@ -0,0 +1,20 @@
+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;
+    }
+
+    // Additional methods specific to Warrior can be added here
+    public int getForce() {
+        return force;
+    }
+
+    public void setForce(int force) {
+        this.force = force;
+    }
+    public Elf convertToElf() {
+        return new Elf(this.getHealth(), this.getStrength(), this.getLives(), this.force);
+    }
+}
diff --git a/src1/src/main/java/Wizard.java b/src1/src/main/java/Wizard.java
new file mode 100644
index 0000000..0bb6245
--- /dev/null
+++ b/src1/src/main/java/Wizard.java
@@ -0,0 +1,20 @@
+public class Wizard extends Player {
+    private String spell;
+
+    public Wizard(int health, int strength, int lives, String spell) {
+        super(health, strength, lives);
+        this.spell = spell;
+    }
+
+    public String getSpell() {
+        return spell;
+    }
+
+    public void setSpell(String spell) {
+        this.spell = spell;
+    }
+
+    public Elf convertToElf() {
+        return new Elf(this.getHealth(), this.getStrength(), this.getLives(), 0); // Assuming spell power doesn't convert to speed, set speed to 0
+    }
+}
diff --git a/src1/src/test/java/ElfTest.java b/src1/src/test/java/ElfTest.java
new file mode 100644
index 0000000..bc700f8
--- /dev/null
+++ b/src1/src/test/java/ElfTest.java
@@ -0,0 +1,31 @@
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+public class ElfTest {
+
+    private Elf elf;
+
+    @BeforeEach
+    public void setUp() {
+        elf = new Elf(100, 20, 3, 15);
+    }
+
+    @Test
+    public void testGettersAndSetters() {
+        assertEquals(100, elf.getHealth());
+        assertEquals(20, elf.getStrength());
+        assertEquals(3, elf.getLives());
+        assertEquals(15, elf.getSpeed());
+
+        elf.setHealth(90);
+        elf.setStrength(25);
+        elf.setLives(2);
+        elf.setSpeed(20);
+
+        assertEquals(90, elf.getHealth());
+        assertEquals(25, elf.getStrength());
+        assertEquals(2, elf.getLives());
+        assertEquals(20, elf.getSpeed());
+    }
+}
diff --git a/src1/src/test/java/JavaKeywordCheckerTest.java b/src1/src/test/java/JavaKeywordCheckerTest.java
new file mode 100644
index 0000000..c28913e
--- /dev/null
+++ b/src1/src/test/java/JavaKeywordCheckerTest.java
@@ -0,0 +1,15 @@
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+public class JavaKeywordCheckerTest {
+
+    @Test
+    public void testContainsJavaKeyword() {
+        assertTrue(JavaKeyWordChecker.containsJavaKeyword("Don't break my heart"));
+        assertFalse(JavaKeyWordChecker.containsJavaKeyword("I love to breakdance"));
+        assertTrue(JavaKeyWordChecker.containsJavaKeyword("This is a class"));
+        assertFalse(JavaKeyWordChecker.containsJavaKeyword("This is classic music"));
+        assertTrue(JavaKeyWordChecker.containsJavaKeyword("Switch to the new version"));
+        assertTrue(JavaKeyWordChecker.containsJavaKeyword("Switching to a new version"));
+    }
+}
diff --git a/src1/src/test/java/OddIntegersTest.java b/src1/src/test/java/OddIntegersTest.java
new file mode 100644
index 0000000..d49b5f2
--- /dev/null
+++ b/src1/src/test/java/OddIntegersTest.java
@@ -0,0 +1,35 @@
+import static org.junit.jupiter.api.Assertions.assertArrayEquals;
+import org.junit.jupiter.api.Test;
+
+public class OddIntegersTest {
+
+    @Test
+    public void testOddIntegersUpTo1() {
+        int[] expected = {1};
+        assertArrayEquals(expected, OddNumbers.getOddIntegers(1));
+    }
+
+    @Test
+    public void testOddIntegersUpTo5() {
+        int[] expected = {1, 3, 5};
+        assertArrayEquals(expected, OddNumbers.getOddIntegers(5));
+    }
+
+    @Test
+    public void testOddIntegersUpTo10() {
+        int[] expected = {1, 3, 5, 7, 9};
+        assertArrayEquals(expected, OddNumbers.getOddIntegers(10));
+    }
+
+    @Test
+    public void testOddIntegersUpTo0() {
+        int[] expected = {};
+        assertArrayEquals(expected, OddNumbers.getOddIntegers(0));
+    }
+
+    @Test
+    public void testOddIntegersUpToNegative() {
+        int[] expected = {};
+        assertArrayEquals(expected, OddNumbers.getOddIntegers(-5));
+    }
+}
diff --git a/src1/src/test/java/PlayerTest.java b/src1/src/test/java/PlayerTest.java
new file mode 100644
index 0000000..a3eb018
--- /dev/null
+++ b/src1/src/test/java/PlayerTest.java
@@ -0,0 +1,74 @@
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+public class PlayerTest {
+
+    private Warrior warrior1;
+    private Warrior warrior2;
+
+    @BeforeEach
+    public void setUp() {
+        warrior1 = new Warrior(100, 20, 3,60);
+        warrior2 = new Warrior(80, 15, 2,70);
+    }
+
+    @Test
+    public void testInitialValues() {
+        assertEquals(100, warrior1.getHealth());
+        assertEquals(20, warrior1.getStrength());
+        assertEquals(3, warrior1.getLives());
+
+        assertEquals(80, warrior2.getHealth());
+        assertEquals(15, warrior2.getStrength());
+        assertEquals(2, warrior2.getLives());
+    }
+
+    @Test
+    public void testAttack() {
+        warrior1.attack(warrior2);
+        assertEquals(60, warrior2.getHealth());
+        assertEquals(2, warrior2.getLives());
+
+        warrior2.attack(warrior1);
+        assertEquals(85, warrior1.getHealth());
+        assertEquals(3, warrior1.getLives());
+    }
+
+    @Test
+    public void testCheckHealth() {
+        warrior2.setHealth(0);
+        warrior2.checkHealth();
+        assertEquals(80, warrior2.getHealth()); // Restored health
+        assertEquals(1, warrior2.getLives());
+    }
+
+    @Test
+    public void testDecrementLive() {
+        warrior2.decrementLive();
+        assertEquals(80, warrior2.getHealth()); // Restored health
+        assertEquals(1, warrior2.getLives());
+
+        warrior2.decrementLive();
+        assertEquals(80, warrior2.getHealth());
+        assertEquals(0, warrior2.getLives());
+
+        warrior2.decrementLive(); // Should print "This character is dead"
+        assertEquals(80, warrior2.getHealth());
+        assertEquals(0, warrior2.getLives());
+    }
+
+    @Test
+    public void testDeadCharacter() {
+        warrior2.setLives(1);
+        warrior2.setHealth(10);
+
+        warrior1.attack(warrior2);
+        assertEquals(0, warrior2.getLives());
+        assertEquals(80, warrior2.getHealth());
+
+        warrior1.attack(warrior2); // Further attack should not decrement lives
+        assertEquals(0, warrior2.getLives());
+        assertEquals(60, warrior2.getHealth()); // Health still decreases
+    }
+}
diff --git a/src1/src/test/java/WizardTest.java b/src1/src/test/java/WizardTest.java
new file mode 100644
index 0000000..a03f73e
--- /dev/null
+++ b/src1/src/test/java/WizardTest.java
@@ -0,0 +1,41 @@
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+public class WizardTest {
+
+    private Wizard wizard;
+    private Elf elf;
+
+    @BeforeEach
+    public void setUp() {
+        wizard = new Wizard(80, 15, 2, "Fireball");
+    }
+
+    @Test
+    public void testGettersAndSetters() {
+        assertEquals(80, wizard.getHealth());
+        assertEquals(15, wizard.getStrength());
+        assertEquals(2, wizard.getLives());
+        assertEquals("Fireball", wizard.getSpell());
+
+        wizard.setHealth(70);
+        wizard.setStrength(20);
+        wizard.setLives(1);
+        wizard.setSpell("Lightning");
+
+        assertEquals(70, wizard.getHealth());
+        assertEquals(20, wizard.getStrength());
+        assertEquals(1, wizard.getLives());
+        assertEquals("Lightning", wizard.getSpell());
+    }
+
+    @Test
+    public void testConvertToElf() {
+        elf = wizard.convertToElf();
+        assertEquals(wizard.getHealth(), elf.getHealth());
+        assertEquals(wizard.getStrength(), elf.getStrength());
+        assertEquals(wizard.getLives(), elf.getLives());
+        assertEquals(0, elf.getSpeed());
+    }
+}