Final commit

.gitignore

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+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

pom.xml

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+<?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>extra-lab</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>21</maven.compiler.source>
+        <maven.compiler.target>21</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>

src/main/java/AverageCalculator.java

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+import java.util.Scanner;
+
+public class AverageCalculator {
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+
+        System.out.println("Introduce los numeros para promediar: ");
+        int count = scanner.nextInt();
+
+        double sum = 0;
+
+        for (int i = 1; i <= count; i++) {
+            System.out.println("Introduce el número " + i + ": ");
+            double num = scanner.nextDouble();
+            sum += num;
+        }
+
+        double average = sum / count;
+        System.out.println("El promedio es: " + average);
+
+        scanner.close();
+    }
+}

src/main/java/FileWriterExample.java

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+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.Scanner;
+
+public class FileWriterExample  {
+    public static void main(String[] args) throws IOException {
+        Scanner scanner = new Scanner(System.in);
+
+        System.out.println("Introduce el nombre del archivo: ");
+        String fileName = scanner.nextLine();
+
+
+        FileWriter writer = new FileWriter(fileName);
+
+        System.out.println("Introduce líneas de texto:");
+
+        String line;
+        while (true) {
+            line = scanner.nextLine();
+            if (line.isEmpty()) {
+                break;
+            }
+            writer.write(line + "\n");
+        }
+
+        writer.close();
+        System.out.println("El archivo se ha escrito sin errores.");
+
+        scanner.close();
+    }
+}

src/main/java/MultiplicationTable.java

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+import java.util.Scanner;
+
+public class MultiplicationTable {
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+
+        System.out.println("Introduce un número para generar su tabla de multiplicar: ");
+        int number = scanner.nextInt();
+
+        System.out.println("Tabla de multiplicar del " + number + ":");
+
+        for (int i = 1; i <= 10; i++) {
+            System.out.println(number + " x " + i + " = " + (number * i));
+        }
+
+        scanner.close();
+    }
+}

src/main/java/NumberGuessingGame.java

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+import java.util.Scanner;
+import java.util.Random;
+
+public class NumberGuessingGame {
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+        Random random = new Random();
+
+        // Generar número aleatorio entre 1 y 100
+        int secretNumber = random.nextInt(100) + 1;
+        int attempts = 0;
+        int guess = 0;
+
+        System.out.println("¡Bienvenido al Juego de Adivinanzas!");
+        System.out.println("He pensado en un número entre 1 y 100.");
+
+        // Bucle hasta que el usuario adivine el número
+        while (guess != secretNumber) {
+            System.out.print("Introduce tu suposición: ");
+            guess = scanner.nextInt();
+            attempts++;
+
+            if (guess < secretNumber) {
+                System.out.println("El número es mayor. Inténtalo de nuevo.");
+            } else if (guess > secretNumber) {
+                System.out.println("El número es menor. Inténtalo de nuevo.");
+            } else {
+                System.out.println("¡Felicidades! ¡Has adivinado el número!");
+                System.out.println("Has necesitado " + attempts + " intentos.");
+            }
+        }
+
+        scanner.close();
+    }
+}

src/main/java/VowelCounter.java

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+import java.util.Scanner;
+
+public class VowelCounter {
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+
+        System.out.println("Introduce una frase: ");
+        String phrase = scanner.nextLine();
+        phrase = phrase.toLowerCase();
+
+        int vowelCount = 0;
+
+        for (int i = 0; i < phrase.length(); i++) {
+            char ch = phrase.charAt(i);
+
+            if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u') {
+                vowelCount++;
+            }
+        }
+
+        System.out.println("La frase contiene " + vowelCount + " vocales.");
+
+        scanner.close();
+    }
+}