Lab19-20

Author: MikleC

students/23K0565/23K0565-p01/src/main/java/ru/mirea/practice/s0000001/Pr3.java

@@ -10,4 +10,4 @@ public static void main(String[] args) {
         int avg = s / arr.length;
         System.out.print("Сумма: " + s + " Среднее: " + avg);
     }
-}
+}

students/23K0565/23K0565-p11/src/main/java/ru/mirea/practice/s0000001/n1/Fam.java renamed to students/23K0565/23K0565-p11/src/main/java/ru.mirea.practice.s0000001/n1/Fam.java

@@ -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>23K0565</artifactId>
+        <groupId>ru.mirea.practice</groupId>
+        <version>2024.1</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+    <artifactId>23K0565-p19</artifactId>
+    <description>19 практическая</description>
+</project>

students/23K0565/23K0565-p19/pom.xml

@@ -0,0 +1,7 @@
+package ru.mirea.practice.s0000001.n1;
+
+public class InvalidInnException extends Exception {
+    public InvalidInnException(String message) {
+        super(message);
+    }
+}

students/23K0565/23K0565-p19/src/main/java/ru.mirea.practice.s0000001/n1/InvalidInnException.java

@@ -0,0 +1,30 @@
+package ru.mirea.practice.s0000001.n1;
+
+import java.util.Scanner;
+
+public final class Main {
+
+    private Main() {
+        throw new UnsupportedOperationException("Utility class");
+    }
+
+    public static void main(String[] args) {
+        try (Scanner input = new Scanner(System.in)) {
+            System.out.print("Введите ИНН: ");
+            String inn = input.nextLine();
+
+            try {
+                checkInn(inn);
+                System.out.println("ИНН действителен!");
+            } catch (InvalidInnException e) {
+                System.out.println(e.getMessage());
+            }
+        }
+    }
+
+    static void checkInn(String inn) throws InvalidInnException {
+        if (inn == null || inn.length() != 12 || !inn.matches("\\d+")) {
+            throw new InvalidInnException("Недействительный ИНН: " + inn);
+        }
+    }
+}

students/23K0565/23K0565-p19/src/main/java/ru.mirea.practice.s0000001/n1/Main.java

@@ -0,0 +1,7 @@
+package ru.mirea.practice.s0000001.n2;
+
+public class EmpString extends Exception {
+    public EmpString(String message) {
+        super(message);
+    }
+}

students/23K0565/23K0565-p19/src/main/java/ru.mirea.practice.s0000001/n2/EmpString.java

@@ -0,0 +1,32 @@
+package ru.mirea.practice.s0000001.n2;
+
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+
+public class LabClass {
+    private List<Student> students = new ArrayList<>();
+
+    public void addStudent(Student student) {
+        students.add(student);
+    }
+
+    public void sortStudentsByScore() {
+        Collections.sort(students, Comparator.comparingDouble(Student::getAverageScore).reversed());
+    }
+
+    public Student findStudentByFio(String fio) throws NStudent, EmpString {
+        if (fio == null || fio.trim().isEmpty()) {
+            throw new EmpString("ФИО не может быть пустым:(");
+        }
+        return students.stream()
+            .filter(student -> student.getFio().equalsIgnoreCase(fio))
+            .findFirst()
+            .orElseThrow(() -> new NStudent("Студент с ФИО " + fio + " не найден"));
+    }
+
+    public List<Student> getStudents() {
+        return students;
+    }
+}

students/23K0565/23K0565-p19/src/main/java/ru.mirea.practice.s0000001/n2/LabClass.java

@@ -0,0 +1,34 @@
+package ru.mirea.practice.s0000001.n2;
+
+import java.util.Scanner;
+
+public class LabClassUI {
+    private LabClass labClass = new LabClass();
+    private Scanner scanner = new Scanner(System.in);
+
+    public void addStudent() {
+        System.out.print("Введите ФИО: ");
+        String fio = scanner.nextLine();
+        System.out.print("Введите средний балл: ");
+        double averageScore = scanner.nextDouble();
+        scanner.nextLine(); // очистка буфера
+        labClass.addStudent(new Student(fio, averageScore));
+        System.out.println("Студент добавлен.");
+    }
+
+    public void sortStudents() {
+        labClass.sortStudentsByScore();
+        System.out.println("Студенты отсортированы по среднему баллу.");
+    }
+
+    public void findStudent() {
+        System.out.print("Введите ФИО для поиска: ");
+        String fio = scanner.nextLine();
+        try {
+            Student student = labClass.findStudentByFio(fio);
+            System.out.println("Найден студент: " + student.getFio() + ", Средний балл: " + student.getAverageScore());
+        } catch (NStudent | EmpString e) {
+            System.out.println(e.getMessage());
+        }
+    }
+}

students/23K0565/23K0565-p19/src/main/java/ru.mirea.practice.s0000001/n2/LabClassUI.java

@@ -0,0 +1,7 @@
+package ru.mirea.practice.s0000001.n2;
+
+public class NStudent extends Exception {
+    public NStudent(String message) {
+        super(message);
+    }
+}

students/23K0565/23K0565-p19/src/main/java/ru.mirea.practice.s0000001/n2/NStudent.java

@@ -0,0 +1,19 @@
+package ru.mirea.practice.s0000001.n2;
+
+public class Student {
+    private String fio;
+    private double averageScore;
+
+    public Student(String fio, double averageScore) {
+        this.fio = fio;
+        this.averageScore = averageScore;
+    }
+
+    public String getFio() {
+        return fio;
+    }
+
+    public double getAverageScore() {
+        return averageScore;
+    }
+}