{"id":297,"date":"2025-06-29T14:25:58","date_gmt":"2025-06-29T14:25:58","guid":{"rendered":"https:\/\/thetestdata.com\/blog\/?p=297"},"modified":"2025-07-16T10:17:04","modified_gmt":"2025-07-16T10:17:04","slug":"access-modifiers-in-java-and-its-scope","status":"publish","type":"post","link":"https:\/\/thetestdata.com\/blog\/access-modifiers-in-java-and-its-scope\/","title":{"rendered":"Access Modifiers in Java and its scope?"},"content":{"rendered":"\n<p>In Java, <strong>access modifiers<\/strong> determine the visibility or accessibility of classes, methods, constructors, and variables. They help enforce encapsulation and control how different parts of your code interact.<\/p>\n\n\n\n<p>There are <strong>four main access modifiers<\/strong> in Java:<\/p>\n\n\n\n<p>1. <strong><code>public<\/code><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Scope<\/strong>: Accessible from <strong>anywhere<\/strong> in the program\u2014across all packages.<\/li>\n\n\n\n<li><strong>Use Case<\/strong>: When you want a class or method to be universally accessible.<\/li>\n\n\n\n<li><strong>Example<\/strong>:<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"937\" height=\"166\" src=\"https:\/\/thetestdata.com\/blog\/wp-content\/uploads\/2025\/06\/image-27.png\" alt=\"\" class=\"wp-image-304\" srcset=\"https:\/\/thetestdata.com\/blog\/wp-content\/uploads\/2025\/06\/image-27.png 937w, https:\/\/thetestdata.com\/blog\/wp-content\/uploads\/2025\/06\/image-27-300x53.png 300w, https:\/\/thetestdata.com\/blog\/wp-content\/uploads\/2025\/06\/image-27-768x136.png 768w\" sizes=\"auto, (max-width: 937px) 100vw, 937px\" \/><\/figure>\n\n\n\n<p>2. <strong><code>protected<\/code><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Scope<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Accessible <strong>within the same package<\/strong>.<\/li>\n\n\n\n<li>Also accessible in <strong>subclasses<\/strong>, even if they are in different packages.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Use Case<\/strong>: When you want to allow inheritance but still restrict access to outsiders.<\/li>\n\n\n\n<li><strong>Example<\/strong>:<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"981\" height=\"115\" src=\"https:\/\/thetestdata.com\/blog\/wp-content\/uploads\/2025\/06\/image-22.png\" alt=\"\" class=\"wp-image-299\" srcset=\"https:\/\/thetestdata.com\/blog\/wp-content\/uploads\/2025\/06\/image-22.png 981w, https:\/\/thetestdata.com\/blog\/wp-content\/uploads\/2025\/06\/image-22-300x35.png 300w, https:\/\/thetestdata.com\/blog\/wp-content\/uploads\/2025\/06\/image-22-768x90.png 768w\" sizes=\"auto, (max-width: 981px) 100vw, 981px\" \/><\/figure>\n\n\n\n<p>3. <strong><code>default<\/code><\/strong> (no modifier)<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Scope<\/strong>: Accessible <strong>only within the same package<\/strong>.<\/li>\n\n\n\n<li><strong>Use Case<\/strong>: When you want to hide implementation details from other packages.<\/li>\n\n\n\n<li><strong>Example<\/strong>:<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"954\" height=\"138\" src=\"https:\/\/thetestdata.com\/blog\/wp-content\/uploads\/2025\/06\/image-26.png\" alt=\"\" class=\"wp-image-303\" srcset=\"https:\/\/thetestdata.com\/blog\/wp-content\/uploads\/2025\/06\/image-26.png 954w, https:\/\/thetestdata.com\/blog\/wp-content\/uploads\/2025\/06\/image-26-300x43.png 300w, https:\/\/thetestdata.com\/blog\/wp-content\/uploads\/2025\/06\/image-26-768x111.png 768w\" sizes=\"auto, (max-width: 954px) 100vw, 954px\" \/><\/figure>\n\n\n\n<p>4. <strong><code>private<\/code><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Scope<\/strong>: Accessible <strong>only within the same class<\/strong>.<\/li>\n\n\n\n<li><strong>Use Case<\/strong>: When you want to encapsulate logic or data completely.<\/li>\n\n\n\n<li><strong>Example<\/strong>:<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"973\" height=\"142\" src=\"https:\/\/thetestdata.com\/blog\/wp-content\/uploads\/2025\/06\/image-25.png\" alt=\"\" class=\"wp-image-302\" srcset=\"https:\/\/thetestdata.com\/blog\/wp-content\/uploads\/2025\/06\/image-25.png 973w, https:\/\/thetestdata.com\/blog\/wp-content\/uploads\/2025\/06\/image-25-300x44.png 300w, https:\/\/thetestdata.com\/blog\/wp-content\/uploads\/2025\/06\/image-25-768x112.png 768w\" sizes=\"auto, (max-width: 973px) 100vw, 973px\" \/><\/figure>\n\n\n\n<p>\ud83d\udd12<strong> Summary Table<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Modifier<\/th><th>Same Class<\/th><th>Same Package<\/th><th>Subclass (Other Package)<\/th><th>Other Packages<\/th><\/tr><\/thead><tbody><tr><td><code>public<\/code><\/td><td>\u2705<\/td><td>\u2705<\/td><td>\u2705<\/td><td>\u2705<\/td><\/tr><tr><td><code>protected<\/code><\/td><td>\u2705<\/td><td>\u2705<\/td><td>\u2705<\/td><td>\u274c<\/td><\/tr><tr><td><code>default<\/code><\/td><td>\u2705<\/td><td>\u2705<\/td><td>\u274c<\/td><td>\u274c<\/td><\/tr><tr><td><code>private<\/code><\/td><td>\u2705<\/td><td>\u274c<\/td><td>\u274c<\/td><td>\u274c<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Learn about Java access modifiers and their scope. Understand how public, private, protected, and default levels control class member visibility.<\/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,"site-container-style":"default","site-container-layout":"default","site-sidebar-layout":"default","disable-article-header":"default","disable-site-header":"default","disable-site-footer":"default","disable-content-area-spacing":"default","footnotes":""},"categories":[17],"tags":[],"class_list":["post-297","post","type-post","status-publish","format-standard","hentry","category-java-interview-questions"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/thetestdata.com\/blog\/wp-json\/wp\/v2\/posts\/297","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thetestdata.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thetestdata.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thetestdata.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/thetestdata.com\/blog\/wp-json\/wp\/v2\/comments?post=297"}],"version-history":[{"count":2,"href":"https:\/\/thetestdata.com\/blog\/wp-json\/wp\/v2\/posts\/297\/revisions"}],"predecessor-version":[{"id":435,"href":"https:\/\/thetestdata.com\/blog\/wp-json\/wp\/v2\/posts\/297\/revisions\/435"}],"wp:attachment":[{"href":"https:\/\/thetestdata.com\/blog\/wp-json\/wp\/v2\/media?parent=297"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thetestdata.com\/blog\/wp-json\/wp\/v2\/categories?post=297"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thetestdata.com\/blog\/wp-json\/wp\/v2\/tags?post=297"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}