{"id":14700,"date":"2024-03-15T09:45:42","date_gmt":"2024-03-15T09:45:42","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-access-variables-of-other-classes-in-java\/"},"modified":"2025-08-06T12:16:06","modified_gmt":"2025-08-06T12:16:06","slug":"how-to-access-variables-of-other-classes-in-java","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-access-variables-of-other-classes-in-java\/","title":{"rendered":"Access Variables in Other Java Classes"},"content":{"rendered":"

To access variables of other classes, you can utilize the following methods:<\/p>\n

    \n
  1. – fluctuating<\/li>\n
  2. retrieveVariable()<\/li>\n
  3. assignVariable()<\/li>\n<\/ol>\n
    public<\/span> class<\/span> OtherClass<\/span> {\r\n    private<\/span> int<\/span> variable;\r\n\r\n    public<\/span> int<\/span> getVariable<\/span>()<\/span> {\r\n        return<\/span> variable;\r\n    }\r\n\r\n    public<\/span> void<\/span> setVariable<\/span>(int<\/span> value)<\/span> {\r\n        variable = value;\r\n    }\r\n}\r\n\r\n\/\/ \u5728\u53e6\u4e00\u4e2a\u7c7b\u4e2d\u8bbf\u95eeOtherClass\u7684\u53d8\u91cf<\/span>\r\npublic<\/span> class<\/span> AnotherClass<\/span> {\r\n    public<\/span> void<\/span> accessVariable<\/span>()<\/span> {\r\n        OtherClass<\/span> other<\/span> =<\/span> new<\/span> OtherClass<\/span>();\r\n        int<\/span> value<\/span> =<\/span> other.getVariable();\r\n        other.setVariable(10<\/span>);\r\n    }\r\n}\r\n<\/code><\/pre>\n
      \n
    1. variable of ClassName<\/li>\n<\/ol>\n
      public<\/span> class<\/span> OtherClass<\/span> {\r\n    public<\/span> static<\/span> int<\/span> variable;\r\n}\r\n\r\n\/\/ \u5728\u53e6\u4e00\u4e2a\u7c7b\u4e2d\u8bbf\u95eeOtherClass\u7684\u9759\u6001\u53d8\u91cf<\/span>\r\npublic<\/span> class<\/span> AnotherClass<\/span> {\r\n    public<\/span> void<\/span> accessVariable<\/span>()<\/span> {\r\n        int<\/span> value<\/span> =<\/span> OtherClass.variable;\r\n        OtherClass.variable = 10<\/span>;\r\n    }\r\n}\r\n<\/code><\/pre>\n
        \n
      1. Object reference: If you create an object of a class in another class, you can directly access variables using the object reference, as long as the access modifier of the variable allows access by objects of that class.<\/li>\n<\/ol>\n
        public<\/span> class<\/span> OtherClass<\/span> {\r\n    public<\/span> int<\/span> variable;\r\n}\r\n\r\n\/\/ \u5728\u53e6\u4e00\u4e2a\u7c7b\u4e2d\u8bbf\u95eeOtherClass\u7684\u53d8\u91cf<\/span>\r\npublic<\/span> class<\/span> AnotherClass<\/span> {\r\n    public<\/span> void<\/span> accessVariable<\/span>()<\/span> {\r\n        OtherClass<\/span> other<\/span> =<\/span> new<\/span> OtherClass<\/span>();\r\n        int<\/span> value<\/span> =<\/span> other.variable;\r\n        other.variable = 10<\/span>;\r\n    }\r\n}\r\n<\/code><\/pre>\n
        Regardless of the method used, you need to ensure that the access modifier of the variable allows access by other classes. If the variable is declared as private, you need to provide public access methods.<\/p>\n","protected":false},"excerpt":{"rendered":"
        To access variables of other classes, you can utilize the following methods: – fluctuating retrieveVariable() assignVariable() public class OtherClass { private int variable; public int getVariable() { return variable; } public void setVariable(int value) { variable = value; } } \/\/ \u5728\u53e6\u4e00\u4e2a\u7c7b\u4e2d\u8bbf\u95eeOtherClass\u7684\u53d8\u91cf public class AnotherClass { public void accessVariable() { OtherClass other = new OtherClass(); […]<\/p>\n","protected":false},"author":14,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[19862,3176,19863,3658,8979],"class_list":["post-14700","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-class-access","tag-coding-techniques","tag-getters-setters","tag-java-oop","tag-java-variables"],"yoast_head":"\nAccess Variables in Other Java Classes - 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