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Код из лекции: public class OrderDTO { private final int id; private final String customerName; private final double orderAmount; // После инициализации финальных полей их больше нельзя менять public Order(int id, String customerName, double orderAmount) { this.id = id; this.customerName = customerName; this.orderAmount = orderAmount; } Вопрос а можно чтобы имя конструктора отличалось от имени класса? ","creator":{"public_name":"Геннадий Б*****н","id":541741,"is_tutor":false},"comments":[{"creator":{"public_name":"Maksim Litvinov","id":198906,"is_tutor":true},"id":189877,"body":"Приветствую, Геннадий! Это опечатка. Поправил, спасибо!","topic_id":98568}],"communitable":{"parent_entity_name":null,"parent_entity_url":null,"entity_name":"Data-классы","entity_url":null,"active":true}}],"lesson":{"exercise":{"id":2866,"slug":"java_classes_data_classes_exercise","name":null,"state":"active","kind":"exercise","language":"java","locale":"ru","has_web_view":false,"has_test_view":false,"reviewable":true,"readme":"## src/main/java/io/hexlet/dto/CustomerDTO.java\n\nВ файле создайте класс `CustomerDTO`, который будет служить в нашем приложении для получения извне данных о покупателе. Класс содержит следующие поля:\n\n- `firstName` — имя покупателя, строка\n- `lastName` — фамилия покупателя, строка\n- `email` — адрес электронной почты, строка\n\nСделайте поля класса неизменяемыми и реализуйте в классе конструктор и геттеры\n\n\n```java\nvar customerDTO = new CustomerDTO(\"Anna\", \"Smith\", \"anna@gmail.com\");\n```\n\n","prepared_readme":"## src/main/java/io/hexlet/dto/CustomerDTO.java\n\nВ файле создайте класс `CustomerDTO`, который будет служить в нашем приложении для получения извне данных о покупателе. Класс содержит следующие поля:\n\n- `firstName` — имя покупателя, строка\n- `lastName` — фамилия покупателя, строка\n- `email` — адрес электронной почты, строка\n\nСделайте поля класса неизменяемыми и реализуйте в классе конструктор и геттеры\n\n\n```java\nvar customerDTO = new CustomerDTO(\"Anna\", \"Smith\", \"anna@gmail.com\");\n```\n\n","has_solution":true,"entity_name":"Data-классы"},"units":[{"id":10626,"name":"theory","url":"/courses/java-classes/lessons/data-classes/theory_unit"},{"id":10731,"name":"quiz","url":"/courses/java-classes/lessons/data-classes/quiz_unit"},{"id":10698,"name":"exercise","url":"/courses/java-classes/lessons/data-classes/exercise_unit"}],"links":[],"ordered_units":[{"id":10626,"name":"theory","url":"/courses/java-classes/lessons/data-classes/theory_unit"},{"id":10731,"name":"quiz","url":"/courses/java-classes/lessons/data-classes/quiz_unit"},{"id":10698,"name":"exercise","url":"/courses/java-classes/lessons/data-classes/exercise_unit"}],"id":4513,"slug":"data-classes","state":"approved","name":"Data-классы","course_order":400,"goal":"Познакомиться с концепцией data-классов, узнать про их отличия от records","self_study":null,"theory_video_provider":null,"theory_video_uid":null,"theory":"Для получения данных извне и передачи их куда-то дальше в Java используются Data-классы. Обычно это связано с любыми внешними источниками данных, базой данных, HTTP, файлами. Если нам нужно получить какие-то данные, например информацию о заказе, нам придется создать класс, который описывает этот заказ. Причем сам класс не будет зависеть от того, из какого источника пришли данные. То же самое работает и в обратном направлении, если нам нужно выгрузить данные, то для этого создаются свои классы, которые содержат только необходимые поля.\n\nData-классы это обычные классы без поведения. Из-за этого их стараются делать неизменяемыми, или как говорят иммутабельными (immutable), для избежания случайных ошибок. В идеале у этих классов нет сеттеров, а все поля помечены как `final`, что защищает их от изменения.\n\n```java\n// DTO - Data Transfer Object\npublic class OrderDTO {\n private final int id;\n private final String customerName;\n private final double orderAmount;\n\n // После инициализации финальных полей их больше нельзя менять\n public OrderDTO(int id, String customerName, double orderAmount) {\n this.id = id;\n this.customerName = customerName;\n this.orderAmount = orderAmount;\n }\n\n public int getId() {\n return id;\n }\n\n public String getCustomerName() {\n return customerName;\n }\n\n public double getOrderAmount() {\n return orderAmount;\n }\n}\n```\n\nData-классы это настолько большая часть любого приложения на Java, что в язык была внедрена новая конструкция Record (запись). Записи по своей сути Data-классы. Ниже пример того, как мы бы могли переделать наш `OrderDTO`:\n\n```java\n// Неизменяемые по умолчанию и это не меняется\npublic record OrderDTO(int id, String customerName, double orderAmount) {\n}\n```\n\nЗапись значительно сокращает количество кода, предоставляя практически такую же функциональность. Но с небольшими отличиями. Геттеры в записях не содержат префикса *get*.\n\n```java\npublic class Main {\n public static void main(String[] args) {\n // Создаем экземпляры заказа\n Order order1 = new OrderDTO(12345, \"Alice Smith\", 250.0);\n Order order2 = new OrderDTO(67890, \"Bob Johnson\", 450.5);\n\n // Получаем доступ к свойствам заказа\n System.out.println(\"Order 1 Details:\");\n System.out.println(\"Order ID: \" + order1.id());\n System.out.println(\"Customer Name: \" + order1.customerName());\n System.out.println(\"Order Amount: \" + order1.orderAmount());\n\n System.out.println(\"Order 2 Details:\");\n System.out.println(\"Order ID: \" + order2.id());\n System.out.println(\"Customer Name: \" + order2.customerName());\n System.out.println(\"Order Amount: \" + order2.orderAmount());\n }\n}\n```\n\nНесмотря на синтаксическое превосходство, записи обладают рядом недостатков, которые делают их использование в качестве замены обычных классов неудобным. Сюда входят:\n\n- Возможность работать только в неизменяемом стиле. Нет сеттеров.\n- Только один конструктор со всеми полями.\n- Нет наследования (иногда нужно).\n- Многие библиотеки и фреймворки до сих пор не совместимы с записями.\n\nПоэтому основным способом по-прежнему является создание обычных классов. И Lombok делает этот процесс достаточно простым.\n\n```java\n@Getter\n@AllArgsConstructor\npublic class OrderDTO {\n private final int id;\n private final String customerName;\n private final double orderAmount;\n}\n```\n"},"lessonMember":null,"courseMember":null,"course":{"start_lesson":{"exercise":null,"units":[{"id":10621,"name":"theory","url":"/courses/java-classes/lessons/intro/theory_unit"}],"links":[],"ordered_units":[{"id":10621,"name":"theory","url":"/courses/java-classes/lessons/intro/theory_unit"}],"id":4508,"slug":"intro","state":"approved","name":"О курсе","course_order":100,"goal":"Знакомимся с целями и задачами курса","self_study":null,"theory_video_provider":null,"theory_video_uid":null,"theory":"Любой код на Java неразрывно связан с классами, их структурой, их связями и особенностями их работы.\n"},"id":386,"slug":"java-classes","challenges_count":5,"name":"Java: Классы","allow_indexing":true,"state":"approved","course_state":"finished","pricing_type":"paid","description":"Практически для любой задачи в Java используются классы. В этом курсе вы изучите различные категории классов, узнаете, для чего нужен класс Object. Познакомитесь с методами equals() и hashCode(), которые нужны для корректного сравнения объектов по их содержимому. Изучите библиотеку Lombok, которая поможет упростить создание классов. 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__m__-_R_rdub_"><style data-mantine-styles="inline">.__m__-_R_6qrdub_{margin-top:0rem;padding-inline:var(--mantine-spacing-xs);width:100%;}@media(min-width: 48em){.__m__-_R_6qrdub_{margin-top:var(--mantine-spacing-xl);width:80%;}}@media(min-width: 62em){.__m__-_R_6qrdub_{padding-inline:var(--mantine-spacing-xl);}}</style><div style="margin-inline:auto;max-width:var(--mantine-breakpoint-xl)" class="__m__-_R_6qrdub_"><div style="color:var(--mantine-color-dimmed)" class="m_4451eb3a mantine-Center-root" data-inline="true"><div style="--ti-size:var(--ti-size-xs);--ti-bg:transparent;--ti-color:var(--mantine-color-indigo-light-color);--ti-bd:calc(0.0625rem * var(--mantine-scale)) solid transparent;margin-inline-end:calc(0.125rem * var(--mantine-scale));color:inherit" class="m_7341320d mantine-ThemeIcon-root" data-variant="transparent" data-size="xs"><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-lock "><path d="M5 13a2 2 0 0 1 2 -2h10a2 2 0 0 1 2 2v6a2 2 0 0 1 -2 2h-10a2 2 0 0 1 -2 -2v-6"></path><path d="M11 16a1 1 0 1 0 2 0a1 1 0 0 0 -2 0"></path><path d="M8 11v-4a4 4 0 1 1 8 0v4"></path></svg></div><p style="font-size:var(--mantine-font-size-sm)" class="mantine-focus-auto m_b6d8b162 mantine-Text-root">Java: Классы</p></div><h1 style="--title-fw:var(--mantine-h1-font-weight);--title-lh:var(--mantine-h1-line-height);--title-fz:var(--mantine-h1-font-size);margin-bottom:var(--mantine-spacing-xl)" class="m_8a5d1357 mantine-Title-root" data-order="1">Теория: Data-классы</h1><script type="application/ld+json">{"@context":"https://schema.org","@type":"LearningResource","name":"Data-классы","inLanguage":"ru","isPartOf":{"@type":"LearningResource","name":"Java: Классы"},"isAccessibleForFree":"False","hasPart":{"@type":"WebPageElement","isAccessibleForFree":"False","cssSelector":".paywalled"}}</script><div class=""><div style="--alert-color:var(--mantine-color-indigo-light-color);margin-bottom:var(--mantine-spacing-lg);font-size:var(--mantine-font-size-lg)" class="m_66836ed3 mantine-Alert-root" id="mantine-_R_remqrdub_" role="alert" aria-describedby="mantine-_R_remqrdub_-body" aria-labelledby="mantine-_R_remqrdub_-title"><div class="m_a5d60502 mantine-Alert-wrapper"><div class="m_667f2a6a mantine-Alert-icon"><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="tabler-icon tabler-icon-rocket "><path d="M4 13a8 8 0 0 1 7 7a6 6 0 0 0 3 -5a9 9 0 0 0 6 -8a3 3 0 0 0 -3 -3a9 9 0 0 0 -8 6a6 6 0 0 0 -5 3"></path><path d="M7 14a6 6 0 0 0 -3 6a6 6 0 0 0 6 -3"></path><path d="M14 9a1 1 0 1 0 2 0a1 1 0 1 0 -2 0"></path></svg></div><div class="m_667c2793 mantine-Alert-body"><div class="m_6a03f287 mantine-Alert-title"><span id="mantine-_R_remqrdub_-title" class="m_698f4f23 mantine-Alert-label">Полный доступ к материалам</span></div><div id="mantine-_R_remqrdub_-body" class="m_7fa78076 mantine-Alert-message"><div style="--group-gap:var(--mantine-spacing-md);--group-align:center;--group-justify:space-between;--group-wrap:wrap" class="m_4081bf90 mantine-Group-root"><p class="mantine-focus-auto m_b6d8b162 mantine-Text-root">Зарегистрируйтесь и получите доступ к этому и десяткам других курсов</p><a style="--button-height:var(--button-height-xs);--button-padding-x:var(--button-padding-x-xs);--button-fz:var(--mantine-font-size-xs);--button-bg:linear-gradient(45deg, var(--mantine-color-blue-filled) 0%, var(--mantine-color-cyan-filled) 100%);--button-hover:linear-gradient(45deg, var(--mantine-color-blue-filled) 0%, var(--mantine-color-cyan-filled) 100%);--button-color:var(--mantine-color-white);--button-bd:none" class="mantine-focus-auto mantine-active m_77c9d27d mantine-Button-root m_87cf2631 mantine-UnstyledButton-root" data-variant="gradient" data-size="xs" href="/u/new"><span class="m_80f1301b mantine-Button-inner"><span class="m_811560b9 mantine-Button-label">Зарегистрироваться</span></span></a></div></div></div></div></div><div class="paywalled m_d08caa0 mantine-Typography-root"><p>Для получения данных извне и передачи их куда-то дальше в Java используются Data-классы. Обычно это связано с любыми внешними источниками данных, базой данных, HTTP, файлами. Если нам нужно получить какие-то данные, например информацию о заказе, нам придется создать класс, который описывает этот заказ. Причем сам класс не будет зависеть от того, из какого источника пришли данные. То же самое работает и в обратном направлении, если нам нужно выгрузить данные, то для этого создаются свои классы, которые содержат только необходимые поля.</p>
<p>Data-классы это обычные классы без поведения. Из-за этого их стараются делать неизменяемыми, или как говорят иммутабельными (immutable), для избежания случайных ошибок. В идеале у этих классов нет сеттеров, а все поля помечены как <code style="margin-bottom:var(--mantine-spacing-lg)" class="m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight m_e597c321 mantine-CodeHighlight-codeHighlight m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight">final</code>, что защищает их от изменения.</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">// DTO - Data Transfer Object
public class OrderDTO {
private final int id;
private final String customerName;
private final double orderAmount;
// После инициализации финальных полей их больше нельзя менять
public OrderDTO(int id, String customerName, double orderAmount) {
this.id = id;
this.customerName = customerName;
this.orderAmount = orderAmount;
}
public int getId() {
return id;
}
public String getCustomerName() {
return customerName;
}
public double getOrderAmount() {
return orderAmount;
}
}</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Data-классы это настолько большая часть любого приложения на Java, что в язык была внедрена новая конструкция Record (запись). Записи по своей сути Data-классы. Ниже пример того, как мы бы могли переделать наш <code style="margin-bottom:var(--mantine-spacing-lg)" class="m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight m_e597c321 mantine-CodeHighlight-codeHighlight m_dfe9c588 mantine-InlineCodeHighlight-inlineCodeHighlight">OrderDTO</code>:</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">// Неизменяемые по умолчанию и это не меняется
public record OrderDTO(int id, String customerName, double orderAmount) {
}</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Запись значительно сокращает количество кода, предоставляя практически такую же функциональность. Но с небольшими отличиями. Геттеры в записях не содержат префикса <em>get</em>.</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">public class Main {
public static void main(String[] args) {
// Создаем экземпляры заказа
Order order1 = new OrderDTO(12345, "Alice Smith", 250.0);
Order order2 = new OrderDTO(67890, "Bob Johnson", 450.5);
// Получаем доступ к свойствам заказа
System.out.println("Order 1 Details:");
System.out.println("Order ID: " + order1.id());
System.out.println("Customer Name: " + order1.customerName());
System.out.println("Order Amount: " + order1.orderAmount());
System.out.println("Order 2 Details:");
System.out.println("Order ID: " + order2.id());
System.out.println("Customer Name: " + order2.customerName());
System.out.println("Order Amount: " + order2.orderAmount());
}
}</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div>
<p>Несмотря на синтаксическое превосходство, записи обладают рядом недостатков, которые делают их использование в качестве замены обычных классов неудобным. Сюда входят:</p>
<ul>
<li>Возможность работать только в неизменяемом стиле. Нет сеттеров.</li>
<li>Только один конструктор со всеми полями.</li>
<li>Нет наследования (иногда нужно).</li>
<li>Многие библиотеки и фреймворки до сих пор не совместимы с записями.</li>
</ul>
<p>Поэтому основным способом по-прежнему является создание обычных классов. И Lombok делает этот процесс достаточно простым.</p>
<div style="margin-bottom:var(--mantine-spacing-lg)" class="m_e597c321 mantine-CodeHighlight-codeHighlight" dir="ltr"><div class="m_be7e9c9c mantine-CodeHighlight-controls"><button style="--ai-bg:transparent;--ai-hover:transparent;--ai-color:inherit;--ai-bd:none" class="mantine-focus-auto mantine-active m_d498bab7 mantine-CodeHighlight-control m_8d3f4000 mantine-ActionIcon-root m_87cf2631 mantine-UnstyledButton-root" data-variant="none" type="button" aria-label="Copy code"><span class="m_8d3afb97 mantine-ActionIcon-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round"><path stroke="none" d="M0 0h24v24H0z" fill="none"></path><path d="M8 8m0 2a2 2 0 0 1 2 -2h8a2 2 0 0 1 2 2v8a2 2 0 0 1 -2 2h-8a2 2 0 0 1 -2 -2z"></path><path d="M16 8v-2a2 2 0 0 0 -2 -2h-8a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h2"></path></svg></span></button></div><div style="--scrollarea-scrollbar-size:calc(0.25rem * var(--mantine-scale));--sa-corner-width:0px;--sa-corner-height:0px" class="m_f744fd40 mantine-CodeHighlight-scrollarea m_d57069b5 mantine-ScrollArea-root" dir="ltr"><div style="overflow-x:hidden;overflow-y:hidden;overscroll-behavior-inline:none" class="m_c0783ff9 mantine-ScrollArea-viewport" data-scrollbars="xy"><div class="m_b1336c6 mantine-ScrollArea-content"><pre class="m_2c47c4fd mantine-CodeHighlight-pre" style="padding:0"><code class="m_5caae6d3 mantine-CodeHighlight-code">@Getter
@AllArgsConstructor
public class OrderDTO {
private final int id;
private final String customerName;
private final double orderAmount;
}</code></pre></div></div></div><button class="mantine-focus-auto m_c9378bc2 mantine-CodeHighlight-showCodeButton m_87cf2631 mantine-UnstyledButton-root" data-hidden="true" type="button">Expand code</button></div></div><div style="margin-block:var(--mantine-spacing-xl)" class=""><h2 style="--title-fw:var(--mantine-h2-font-weight);--title-lh:var(--mantine-h2-line-height);--title-fz:var(--mantine-h2-font-size);margin-bottom:var(--mantine-spacing-md)" class="m_8a5d1357 mantine-Title-root" data-order="2">Рекомендуемые программы</h2><style data-mantine-styles="inline">.__m__-_R_2mremqrdub_{--carousel-slide-gap:var(--mantine-spacing-xs);--carousel-slide-size:70%;}@media(min-width: 36em){.__m__-_R_2mremqrdub_{--carousel-slide-gap:var(--mantine-spacing-xl);--carousel-slide-size:50%;}}</style><div style="--carousel-control-size:calc(2.5rem * 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