{"id":216823,"date":"2025-05-20T12:58:42","date_gmt":"2025-05-20T12:58:42","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=216823"},"modified":"2025-05-20T12:58:44","modified_gmt":"2025-05-20T12:58:44","slug":"make-a-class-heater-that-contains-a-single-integer-field-temperature","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/05\/20\/make-a-class-heater-that-contains-a-single-integer-field-temperature\/","title":{"rendered":"make a class, Heater that contains a single integer field, temperature."},"content":{"rendered":"\n<p>make a class, Heater that contains a single integer field, temperature. Define a constructor that take no parameters. The temperature field should be set to the value 15 in constructor. Define the mutators(setter) warmer and cooler method, whose effect is to increase or decrease the value of the temperature by 5 respectively. Define an accessor (getter) to return the value of temperature.<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>Here is the correct implementation of the <code>Heater<\/code> class in Python:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class Heater:\n    def __init__(self):\n        self.temperature = 15  # Constructor initializes temperature to 15\n\n    def warmer(self):\n        self.temperature += 5  # Increases temperature by 5\n\n    def cooler(self):\n        self.temperature -= 5  # Decreases temperature by 5\n\n    def get_temperature(self):\n        return self.temperature  # Accessor to return current temperature<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation (300+ words):<\/h3>\n\n\n\n<p>In object-oriented programming, a <strong>class<\/strong> is a blueprint for creating objects that encapsulate data (fields) and behaviors (methods). The <code>Heater<\/code> class in this example demonstrates a simple structure containing one data field and a few methods to manipulate and access that data.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Field:<\/strong><\/h4>\n\n\n\n<p>The class has one field called <code>temperature<\/code>, which stores the current temperature as an integer. This variable is defined within the constructor using the <code>self<\/code> keyword, which refers to the instance of the class.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Constructor:<\/strong><\/h4>\n\n\n\n<p>The method <code>__init__()<\/code> is the constructor in Python. It is automatically called when a new object of the class is created. In this case, it takes <strong>no parameters<\/strong> other than <code>self<\/code> and sets the <code>temperature<\/code> to a default value of <strong>15<\/strong>. This ensures that any Heater object begins at a consistent, expected state.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Mutator Methods:<\/strong><\/h4>\n\n\n\n<p>Mutators, also called <strong>setters<\/strong>, are used to modify the value of private or internal fields. The class defines two mutator methods:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>warmer(self)<\/code> increases the <code>temperature<\/code> by <strong>5<\/strong> degrees. It uses the <code>+=<\/code> operator to increment the value.<\/li>\n\n\n\n<li><code>cooler(self)<\/code> decreases the <code>temperature<\/code> by <strong>5<\/strong> degrees using the <code>-=<\/code> operator.<\/li>\n<\/ul>\n\n\n\n<p>These methods allow controlled modification of the temperature field, maintaining encapsulation.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Accessor Method:<\/strong><\/h4>\n\n\n\n<p>The <code>get_temperature(self)<\/code> method is an <strong>accessor<\/strong> or <strong>getter<\/strong>. It returns the current value of <code>temperature<\/code>. Accessors are important for retrieving the internal state of an object without directly exposing or allowing modification of the internal data from outside the class.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Usage:<\/strong><\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>heater = Heater()\nheater.warmer()\nprint(heater.get_temperature())  # Outputs 20\nheater.cooler()\nprint(heater.get_temperature())  # Outputs 15<\/code><\/pre>\n\n\n\n<p>This class follows basic principles of <strong>encapsulation<\/strong>, <strong>data hiding<\/strong>, and <strong>modular design<\/strong>, making it a good example of introductory object-oriented programming.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>make a class, Heater that contains a single integer field, temperature. Define a constructor that take no parameters. The temperature field should be set to the value 15 in constructor. Define the mutators(setter) warmer and cooler method, whose effect is to increase or decrease the value of the temperature by 5 respectively. Define an accessor [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-216823","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/216823","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=216823"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/216823\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=216823"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=216823"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=216823"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}