Features/lab17 19

students/23K1302/23K1302-p17/pom.xml

@@ -0,0 +1,25 @@
+<?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>
+    <parent>
+        <artifactId>23K1302</artifactId>
+        <groupId>ru.mirea.practice</groupId>
+        <version>2024.1</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+    <artifactId>23K1302-p17</artifactId>
+    <description>Задание 17</description>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>14</source>
+                    <target>14</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+</project>

students/23K1302/23K1302-p17/src/main/java/ru/mirea/practice/s0000001/Ex1.java

@@ -0,0 +1,42 @@
+package ru.mirea.practice.s0000001;
+
+import java.util.Scanner;
+
+public class Ex1 {
+
+    public static String funk(boolean a) {
+        if (a) {
+            return "Список пуст";
+        } else {
+            return "Список полон";
+        }
+    }
+
+    public static void main(String[] args) {
+        LinkedList list = new LinkedList();
+        Scanner scanner = new Scanner(System.in);
+        int choice;
+
+        do {
+            System.out.println("\nМеню:");
+            System.out.println("1. Добавить элемент");
+            System.out.println("2. Удалить элемент");
+            System.out.println("3. Вывести список");
+            System.out.println("4. Очистить список");
+            System.out.println("5. Проверить, пуст ли список");
+            System.out.println("0. Выход");
+            System.out.print("Выберите опцию: ");
+            choice = scanner.nextInt();
+
+            switch (choice) {
+                case 1 -> list.addElement();
+                case 2 -> list.removeElement();
+                case 3 -> list.displayElements();
+                case 4 -> list.clearList();
+                case 5 -> System.out.println(funk(list.isEmpty()));
+                case 0 -> System.out.println("Выход из программы.");
+                default -> System.out.println("Неверный выбор. Пожалуйста, попробуйте снова.");
+            }
+        } while (choice != 0);
+    }
+}

students/23K1302/23K1302-p17/src/main/java/ru/mirea/practice/s0000001/LinkedList.java

@@ -0,0 +1,47 @@
+package ru.mirea.practice.s0000001;
+
+public class LinkedList {
+    private Node head;
+
+    public LinkedList() {
+        this.head = null;
+    }
+
+    public void addElement() {
+        Node newNode = new Node();
+        newNode.readAttributes();
+        newNode.next = head;
+        head = newNode;
+        System.out.println("Элемент добавлен.");
+    }
+
+    public void removeElement() {
+        if (head == null) {
+            System.out.println("Список пуст.");
+            return;
+        }
+        head = head.next;
+        System.out.println("Элемент удалён.");
+    }
+
+    public void displayElements() {
+        if (head == null) {
+            System.out.println("Список пуст.");
+            return;
+        }
+        Node current = head;
+        while (current != null) {
+            current.displayAttributes();
+            current = current.next;
+        }
+    }
+
+    public void clearList() {
+        head = null;
+        System.out.println("Список очищен.");
+    }
+
+    public boolean isEmpty() {
+        return head == null;
+    }
+}

students/23K1302/23K1302-p17/src/main/java/ru/mirea/practice/s0000001/Node.java

@@ -0,0 +1,24 @@
+package ru.mirea.practice.s0000001;
+
+import java.util.Scanner;
+
+public class Node {
+    private String name;
+    private int age;
+    public Node next;
+
+    public void readAttributes() {
+        try (Scanner scanner = new Scanner(System.in)) {
+            System.out.print("Введите имя: ");
+            this.name = scanner.nextLine();
+            System.out.print("Введите возраст: ");
+            this.age = scanner.nextInt();
+        } catch (Exception e) {
+            System.out.println("Ошибка при вводе данных: " + e.getMessage());
+        }
+    }
+
+    public void displayAttributes() {
+        System.out.println("Имя: " + name + ", Возраст: " + age);
+    }
+}

students/23K1302/23K1302-p18/pom.xml

@@ -0,0 +1,13 @@
+<?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>
+    <parent>
+        <artifactId>23K1302</artifactId>
+        <groupId>ru.mirea.practice</groupId>
+        <version>2024.1</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+    <artifactId>23K1302-p18</artifactId>
+    <description>Задание 18</description>
+</project>

students/23K1302/23K1302-p18/src/main/java/ru/mirea/practice/s0000001/Ex1o1.java

@@ -0,0 +1,7 @@
+package ru.mirea.practice.s0000001;
+
+public class Ex1o1 {
+    public void exceptionDemo() {
+        System.out.println(2.0 / 0.0);
+    }
+}

students/23K1302/23K1302-p18/src/main/java/ru/mirea/practice/s0000001/Ex1o2.java

@@ -0,0 +1,7 @@
+package ru.mirea.practice.s0000001;
+
+public class Ex1o2 {
+    public void exceptionDemo() {
+        System.out.println(2.0 / 0.0);
+    }
+}

students/23K1302/23K1302-p18/src/main/java/ru/mirea/practice/s0000001/Ex1o3.java

@@ -0,0 +1,11 @@
+package ru.mirea.practice.s0000001;
+
+public class Ex1o3 {
+    public void exceptionDemo() {
+        try {
+            System.out.println(2 / 0);
+        } catch (ArithmeticException e) {
+            System.out.println("Attempted division by zero");
+        }
+    }
+}

students/23K1302/23K1302-p19/pom.xml

@@ -0,0 +1,13 @@
+<?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>
+    <parent>
+        <artifactId>23K1302</artifactId>
+        <groupId>ru.mirea.practice</groupId>
+        <version>2024.1</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+    <artifactId>23K1302-p19</artifactId>
+    <description>Задание 19</description>
+</project>

students/23K1302/23K1302-p19/src/main/java/ru/mirea/practice/s0000001/Ex1.java

@@ -0,0 +1,25 @@
+package ru.mirea.practice.s0000001;
+
+public final class Ex1 {
+
+    private Ex1() {
+        // NONE
+    }
+
+    public static void main(String[] args) {
+        try {
+            String inn = "12345967890";
+
+            validateInn(inn);
+            System.out.println("Заказ успешно оформлен!");
+        } catch (InvalidInnException e) {
+            System.out.println("Ошибка: " + e.getMessage());
+        }
+    }
+
+    public static void validateInn(String inn) throws InvalidInnException {
+        if (inn.length() != 10) {
+            throw new InvalidInnException("Недействительный ИНН: " + inn);
+        }
+    }
+}

students/23K1302/23K1302-p19/src/main/java/ru/mirea/practice/s0000001/InvalidInnException.java

@@ -0,0 +1,7 @@
+package ru.mirea.practice.s0000001;
+
+public class InvalidInnException extends Exception {
+    public InvalidInnException(String message) {
+        super(message);
+    }
+}

students/23K1302/pom.xml

@@ -30,5 +30,8 @@
         <module>23K1302-p14</module>
         <module>23K1302-p15</module>
         <module>23K1302-p16</module>
+        <module>23K1302-p17</module>
+        <module>23K1302-p18</module>
+        <module>23K1302-p19</module>
     </modules>
 </project>