{"@context":"http://schema.org","@type":"Question","@id":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main","text":"Каков будет результат выполнения данного кода?\n\n\u003cpre\u003e\u003ccode class\u003d\"java\"\u003e\nclass Main {\n  public static void main (String[] args) {\n    String str \u003d \"hello\";\n    StringBuffer sb \u003d new StringBuffer(str);\n    System.out.print(sb.equals(str) + \",\" + str.equals(sb));\n  }\n}\n\u003c/code\u003e\u003c/pre\u003e","headline":"Каков будет результат выполнения данного кода?\n\n\u003cpre\u003e\u003ccode class\u003d\"java\"\u003e\nclass Main {\n  public static void mai","learningResourceType":["programming test","programming course","programming question"],"isPartOf":{"@type":"Course","@id":"https://codegalaxy.io/courses/java-ru","url":"https://codegalaxy.io/courses/java-ru","name":"Java Quiz","description":"Java - объектно-ориентированный кросс-платформенный язык программирования, предназначенный для удобства чтения и интероперабельности. Java обычно читается как легкая и простая версия языка Си++. Тем не менее, Java может использоваться как полная версия для создания приложений, которые могут работать на всех платформах, поддерживающих Java, без необходимости перекомпиляции. В 2020 году Java является самым популярным языком программирования, с которым работают более 9 миллионов разработчиков. \u003cbr\u003e\nЭтот обучающий курс полностью посвящен \u003cstrong\u003eJava языку\u003c/strong\u003e, где вы можете проверить свои знания и ответить на \u003cstrong\u003e вопросы интервью по Java\u003c/strong\u003e. Вы ответите на теоретические и практические вопросы, которые проверяют ваши навыки на понимание \u003cstrong\u003e Java-кода\u003c/strong\u003e и поиска ошибок.\n\u003cbr\u003e\nВы можете вернуться к этому java курсу когда захотите, так как он постоянно обновляется и добавляются новые вопросы и задачки!\n\nПереведено с помощью www.DeepL.com/Translator (бесплатная версия)","provider":{"@type":"Organization","@id":"https://codegalaxy.io","name":"CodeGalaxy","logo":{"@type":"ImageObject","url":"https://codegalaxy.io/app/assets/images/g_code.png","height":"513","width":"513"},"description":"Project aimed to provide new ways in learning programming languages and preparing for the interview."},"image":{"@type":"ImageObject","url":"https://codegalaxy.io/app/assets/images/fb/16x9/share-java-ru.png","height":"630","width":"1200"}},"image":{"@type":"ImageObject","url":"https://codegalaxy.io/app/assets/images/fb/16x9/share-java-ru.png","height":"630","width":"1200"},"answerCount":5,"potentialAction":[{"@type":"AssessAction","object":{"@type":"Question","@id":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main"}},{"@type":"ChooseAction","actionOption":[{"@type":"Answer","@id":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main#20568","url":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main#20568","text":"false,false","dateCreated":"2020-02-06"},{"@type":"Answer","@id":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main#20569","url":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main#20569","text":"false,true","dateCreated":"2020-02-06"},{"@type":"Answer","@id":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main#20570","url":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main#20570","text":"true,false","dateCreated":"2020-02-06"},{"@type":"Answer","@id":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main#20571","url":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main#20571","text":"true,true","dateCreated":"2020-02-06"}],"object":{"@type":"Answer","@id":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main#20568","url":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main#20568","text":"false,false","dateCreated":"2020-02-06"}}],"audience":{"@type":"EducationalAudience","audienceType":["developers","programmers"],"educationalRole":["Specialist","Student"],"alternateName":"Java Programmers","name":"Java Developers","sameAs":["https://en.wikipedia.org/wiki/Programmer","https://en.wikipedia.org/wiki/Software_developer","https://en.wikipedia.org/wiki/Software_engineer","https://en.wikipedia.org/wiki/Web_developer"]},"dateCreated":"2020-02-06","acceptedAnswer":[{"@type":"Answer","@id":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main#js-expander-trigger","url":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main#js-expander-trigger","text":"В обоих случаях мы пытаемся сравнить экземпляры разных классов, поэтому результат будет отрицательным. У sb автоматически не станет вызываться toString(). У StringBuffer не переопределен метод equals","about":{"@type":"Question","@id":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main"},"upvoteCount":1,"dateCreated":"2020-02-06"},{"@type":"Answer","@id":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main#20568","url":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main#20568","text":"false,false","dateCreated":"2020-02-06","upvoteCount":1}],"suggestedAnswer":[{"@type":"Answer","@id":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main#20569","url":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main#20569","text":"false,true","dateCreated":"2020-02-06","upvoteCount":0},{"@type":"Answer","@id":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main#20570","url":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main#20570","text":"true,false","dateCreated":"2020-02-06","upvoteCount":0},{"@type":"Answer","@id":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main#20571","url":"https://codegalaxy.io/courses/java-ru/questions/23e4146365be4ce4862cc327d26a1179/kakov-budet-rezultat-vypolneniya-dannogo-koda-class-main-public-static-void-main#20571","text":"true,true","dateCreated":"2020-02-06","upvoteCount":0}]}