{"id":6212,"date":"2025-05-30T15:45:21","date_gmt":"2025-05-30T10:15:21","guid":{"rendered":"https:\/\/namastedev.com\/blog\/?p=6212"},"modified":"2025-05-30T15:45:21","modified_gmt":"2025-05-30T10:15:21","slug":"how-to-check-if-a-number-is-even-or-odd-in-javascript-c-c-python-and-java","status":"publish","type":"post","link":"https:\/\/namastedev.com\/blog\/how-to-check-if-a-number-is-even-or-odd-in-javascript-c-c-python-and-java\/","title":{"rendered":"How to Check if a Number is Even or Odd in JavaScript, C, C++, Python, and Java"},"content":{"rendered":"\n<!-- Prism.js CSS and JS -->\n<link href=\"https:\/\/cdn.jsdelivr.net\/npm\/prismjs@1.29.0\/themes\/prism-tomorrow.css\" rel=\"stylesheet\" \/>\n<script src=\"https:\/\/cdn.jsdelivr.net\/npm\/prismjs@1.29.0\/prism.js\"><\/script>\n<script src=\"https:\/\/cdn.jsdelivr.net\/npm\/prismjs@1.29.0\/plugins\/autoloader\/prism-autoloader.min.js\"><\/script>\n\n<style>\n  .wp_blog_code-tabs-container {\n    font-family: \"Segoe UI\", sans-serif !important;\n    max-width: 900px !important;\n    margin: 2rem auto !important;\n    border: 1px solid #ddd !important;\n    border-radius: 8px !important;\n    overflow: hidden !important;\n    background-color: white !important;\n  }\n\n  .wp_blog_code-tabs-header {\n    background: #f7f7f7 !important;\n    display: flex !important;\n    border-bottom: 1px solid #ddd !important;\n  }\n\n  .wp_blog_code-tab-button {\n    flex: 1 !important;\n    padding: 10px 15px !important;\n    border: none !important;\n    background: transparent !important;\n    cursor: pointer !important;\n    font-weight: bold !important;\n    transition: background 0.2s !important;\n    color: #242B33 !important;\n  }\n\n  .wp_blog_code-tab-button.active {\n    background: white !important;\n    border-bottom: 3px solid #0073aa !important;\n  }\n\n  .wp_blog_code-tab-content {\n    display: none !important;\n    padding: 20px !important;\n    background: #242B33 !important;\n  }\n\n  .wp_blog_code-tab-content > pre {\n    background: #242B33 !important;\n  }\n\n  .wp_blog_code-tab-content.active {\n    display: block !important;\n  }\n\n  .wp_blog_code-tab-content pre {\n    margin: 0 !important;\n    overflow-x: auto !important;\n  }\n\n  .wp_blog_explanation {\n    max-width: 900px !important;\n    margin: 2rem auto !important;\n    font-family: \"Segoe UI\", sans-serif !important;\n    line-height: 1.6 !important;\n    background: white !important;\n    color: black !important;\n    padding: 1rem !important;\n    border-radius: 8px !important;\n  }\n\n  .wp_blog_explanation h2 {\n    color: #0073aa !important;\n    font-size: 1.5rem !important;\n    margin-bottom: 0.5rem !important;\n  }\n\n  .wp_blog_explanation code {\n    background: #f1f1f1 !important;\n    padding: 2px 6px !important;\n    border-radius: 4px !important;\n    font-family: monospace !important;\n  }\n\n  .wp_blog_explanation h1,\n  .wp_blog_explanation h2,\n  .wp_blog_explanation h3,\n  .wp_blog_explanation h4,\n  .wp_blog_explanation h5,\n  .wp_blog_explanation h6,\n  .wp_blog_explanation p {\n    margin-top: 10px !important;\n    margin-bottom: 10px !important;\n  }\n<\/style>\n\n<div class=\"wp_blog_explanation\">\n  <h2>Question<\/h2>\n  <p>Write a function that accepts a number and checks whether it is even or odd.<\/p>\n  <p>If the number is divisible by 2 (i.e., remainder is 0), it&#8217;s an <strong>Even<\/strong> number.<\/p>\n  <p>Otherwise, it&#8217;s an <strong>Odd<\/strong> number.<\/p>\n  <p>Test the function with inputs <code>18<\/code> and <code>5<\/code>.<\/p>\n\n  <h2>Approach<\/h2>\n  <ul>\n    <li>Accept the input number in the function.<\/li>\n    <li>Check if the number modulo 2 equals 0.<\/li>\n    <li>If yes, print or return &#8220;Even&#8221;.<\/li>\n    <li>Otherwise, print or return &#8220;Odd&#8221;.<\/li>\n    <li>Test the function with different numbers to verify correctness.<\/li>\n  <\/ul>\n\n  <h2>Example<\/h2>\n  <pre><code>Input: 18\nOutput: Even\n\nInput: 5\nOutput: Odd\n<\/code><\/pre>\n<\/div>\n\n<div class=\"wp_blog_code-tabs-container\">\n  <div class=\"wp_blog_code-tabs-header\">\n    <button class=\"wp_blog_code-tab-button active\" data-lang=\"js\">JavaScript<\/button>\n    <button class=\"wp_blog_code-tab-button\" data-lang=\"cpp\">C++<\/button>\n    <button class=\"wp_blog_code-tab-button\" data-lang=\"c\">C<\/button>\n    <button class=\"wp_blog_code-tab-button\" data-lang=\"java\">Java<\/button>\n    <button class=\"wp_blog_code-tab-button\" data-lang=\"py\">Python<\/button>\n  <\/div>\n\n  <div class=\"wp_blog_code-tab-content active\" data-lang=\"js\">\n    <pre><code class=\"language-javascript\">\nfunction isEvenOdd(num) {\n  let rem = num % 2;\n  if (rem == 0) {\n    console.log(\"Even number\");\n  } else {\n    console.log(\"Odd number\");\n  }\n}\n\nisEvenOdd(18);  \/\/ Output: Even number\nisEvenOdd(5);   \/\/ Output: Odd number\n    <\/code><\/pre>\n  <\/div>\n\n  <div class=\"wp_blog_code-tab-content\" data-lang=\"cpp\">\n    <pre><code class=\"language-cpp\">\n#include &lt;iostream&gt;\nusing namespace std;\n\nvoid isEvenOdd(int num) {\n  int rem = num % 2;\n  if (rem == 0) {\n    cout << \"Even number\" << endl;\n  } else {\n    cout << \"Odd number\" << endl;\n  }\n}\n\nint main() {\n  isEvenOdd(18);  \/\/ Output: Even number\n  isEvenOdd(5);   \/\/ Output: Odd number\n  return 0;\n}\n    <\/code><\/pre>\n  <\/div>\n\n  <div class=\"wp_blog_code-tab-content\" data-lang=\"c\">\n    <pre><code class=\"language-c\">\n#include &lt;stdio.h&gt;\n\nvoid isEvenOdd(int num) {\n  int rem = num % 2;\n  if (rem == 0) {\n    printf(\"Even number\\n\");\n  } else {\n    printf(\"Odd number\\n\");\n  }\n}\n\nint main() {\n  isEvenOdd(18);  \/\/ Output: Even number\n  isEvenOdd(5);   \/\/ Output: Odd number\n  return 0;\n}\n    <\/code><\/pre>\n  <\/div>\n\n  <div class=\"wp_blog_code-tab-content\" data-lang=\"java\">\n    <pre><code class=\"language-java\">\npublic class Main {\n  public static void isEvenOdd(int num) {\n    int rem = num % 2;\n    if (rem == 0) {\n      System.out.println(\"Even number\");\n    } else {\n      System.out.println(\"Odd number\");\n    }\n  }\n\n  public static void main(String[] args) {\n    isEvenOdd(18);  \/\/ Output: Even number\n    isEvenOdd(5);   \/\/ Output: Odd number\n  }\n}\n    <\/code><\/pre>\n  <\/div>\n\n  <div class=\"wp_blog_code-tab-content\" data-lang=\"py\">\n    <pre><code class=\"language-python\">\ndef is_even_odd(num):\n    rem = num % 2\n    if rem == 0:\n        print(\"Even number\")\n    else:\n        print(\"Odd number\")\n\nis_even_odd(18)  # Output: Even number\nis_even_odd(5)   # Output: Odd number\n    <\/code><\/pre>\n  <\/div>\n<\/div>\n\n<script>\n  document.addEventListener('DOMContentLoaded', function () {\n    const buttons = document.querySelectorAll('.wp_blog_code-tab-button');\n    const contents = document.querySelectorAll('.wp_blog_code-tab-content');\n\n    buttons.forEach(button => {\n      button.addEventListener('click', () => {\n        const lang = button.getAttribute('data-lang');\n\n        buttons.forEach(btn => btn.classList.remove('active'));\n        button.classList.add('active');\n\n        contents.forEach(content => {\n          content.classList.toggle('active', content.getAttribute('data-lang') === lang);\n        });\n      });\n    });\n  });\n<\/script>\n\n","protected":false},"excerpt":{"rendered":"<p>Question Write a function that accepts a number and checks whether it is even or odd. If the number is divisible by 2 (i.e., remainder is 0), it&#8217;s an Even number. Otherwise, it&#8217;s an Odd number. Test the function with inputs 18 and 5. Approach Accept the input number in the function. Check if the<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[260,811,810,174,172,173],"tags":[],"class_list":{"0":"post-6212","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-c-c-plus-plus","7":"category-data-structures-and-algorithms","8":"category-dsa","9":"category-java","10":"category-javascript","11":"category-python"},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/namastedev.com\/blog\/wp-json\/wp\/v2\/posts\/6212","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/namastedev.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/namastedev.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/namastedev.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/namastedev.com\/blog\/wp-json\/wp\/v2\/comments?post=6212"}],"version-history":[{"count":1,"href":"https:\/\/namastedev.com\/blog\/wp-json\/wp\/v2\/posts\/6212\/revisions"}],"predecessor-version":[{"id":6213,"href":"https:\/\/namastedev.com\/blog\/wp-json\/wp\/v2\/posts\/6212\/revisions\/6213"}],"wp:attachment":[{"href":"https:\/\/namastedev.com\/blog\/wp-json\/wp\/v2\/media?parent=6212"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/namastedev.com\/blog\/wp-json\/wp\/v2\/categories?post=6212"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/namastedev.com\/blog\/wp-json\/wp\/v2\/tags?post=6212"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}