{"id":6536,"date":"2024-04-21T23:45:51","date_gmt":"2024-04-22T06:45:51","guid":{"rendered":"https:\/\/zentut.com\/java-tutorial\/java-static-methods\/"},"modified":"2024-04-21T23:46:34","modified_gmt":"2024-04-22T06:46:34","slug":"java-static-methods","status":"publish","type":"page","link":"https:\/\/www.zentut.com\/java-tutorial\/java-static-methods\/","title":{"rendered":"Java Static Methods"},"content":{"rendered":"\n

Summary<\/strong>: in this tutorial, you will learn how to use Java static methods to define behaviors at the class level.<\/p>\n\n\n\n

Introduction to Java static methods<\/h2>\n\n\n\n

In Java, static methods are methods that belong to the class<\/a>, rather than a specific instance of the class.<\/p>\n\n\n\n

In practice, static methods are often used for creating utility functions, any operations that don’t depend on the object-specific state.<\/p>\n\n\n\n

Defining static methods<\/h3>\n\n\n\n

To define a static method, you use the static<\/code> keyword before the return type of the method:<\/p>\n\n\n

public<\/span> class<\/span> MyClass<\/span> <\/span>{\n    public<\/span> static<\/span> returnType methodName<\/span>(parameters)<\/span> <\/span>{\n        \/\/ Method body<\/span>\n    }\n}<\/code><\/span>Code language:<\/span> Java<\/span> (<\/span>java<\/span>)<\/span><\/small><\/pre>\n\n\n
Invoking static methods<\/h3>\n\n\n\n
To call a static method, you use a class name, followed by a dot, and the method name:<\/p>\n\n\n
MyClass.staticMethod();<\/code><\/span>Code language:<\/span> Java<\/span> (<\/span>java<\/span>)<\/span><\/small><\/pre>\n\n\n
Java static method example<\/h2>\n\n\n\n
The following example shows how to define a class called TemperatureConverter<\/code> that contains two static methods: <\/p>\n\n\n
public<\/span> class<\/span> TemperatureConverter<\/span> <\/span>{\n    public<\/span> static<\/span> double<\/span> CToF<\/span>(double<\/span> value)<\/span> <\/span>{\n        return<\/span> value * 9<\/span> \/ 5<\/span> + 32<\/span>;\n    }\n\n    public<\/span> static<\/span> double<\/span> FToC<\/span>(double<\/span> value)<\/span> <\/span>{\n        return<\/span> (value - 32<\/span>) * 5<\/span> \/ 9<\/span>;\n    }\n}<\/code><\/span>Code language:<\/span> Java<\/span> (<\/span>java<\/span>)<\/span><\/small><\/pre>\n\n\n
The CToF<\/code> method converts a temperature from C to F and the FToC<\/code> converts a temperature from F to C.<\/p>\n\n\n\n
The following program shows how to use the TemperatureConverter<\/code> class:<\/p>\n\n\n
public<\/span> class<\/span> App<\/span> <\/span>{\n    public<\/span> static<\/span> void<\/span> main<\/span>(String[] args)<\/span> <\/span>{\n        var<\/span> c = 38<\/span>;\n        var<\/span> f = TemperatureConverter.CToF(c);\n\n        System.out.println(f);\n    }\n}<\/code><\/span>Code language:<\/span> Java<\/span> (<\/span>java<\/span>)<\/span><\/small><\/pre>\n\n\n
Output:<\/p>\n\n\n
100.4<\/span><\/code><\/span>Code language:<\/span> Java<\/span> (<\/span>java<\/span>)<\/span><\/small><\/pre>\n\n\n
Summary<\/h2>\n\n\n\n
    \n
  • Java static methods are bound to the class, not the instances of the class.<\/li>\n\n\n\n
  • Use static methods for defining classes with utility functions.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
    Summary: in this tutorial, you will learn how to use Java static methods to define behaviors at the class level. Introduction to Java static methods In Java, static methods are methods that belong to the class, rather than a specific instance of the class. In practice, static methods are often used for creating utility functions, […]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":2190,"menu_order":31,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-6536","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.zentut.com\/wp-json\/wp\/v2\/pages\/6536","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zentut.com\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.zentut.com\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.zentut.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zentut.com\/wp-json\/wp\/v2\/comments?post=6536"}],"version-history":[{"count":2,"href":"https:\/\/www.zentut.com\/wp-json\/wp\/v2\/pages\/6536\/revisions"}],"predecessor-version":[{"id":6538,"href":"https:\/\/www.zentut.com\/wp-json\/wp\/v2\/pages\/6536\/revisions\/6538"}],"up":[{"embeddable":true,"href":"https:\/\/www.zentut.com\/wp-json\/wp\/v2\/pages\/2190"}],"wp:attachment":[{"href":"https:\/\/www.zentut.com\/wp-json\/wp\/v2\/media?parent=6536"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}