An interface describes what functions an implemented class will have to code. E.g. if a class was a car and the interface had functions for how many doors etc, then a class of Vauxhall that implements the interface would have to code the function to return the correct amount of doors. <\/p>\n
Here is the code, I usually find the code explains it better.<\/p>\n
\r\n\/\/ defines the fuctions that have to be implemented by a implementable class\r\ninterface implementThese\r\n{\r\n void printHi(); \/\/ have to implement these\r\n void printBye();\r\n}\r\n\r\n\/\/ the interClass will implement the interface implementThese\r\nclass interClass implements implementThese\r\n{\r\n public void printHi()\r\n {\r\n System.out.println(\"Hi\");\r\n }\r\n\r\n public void printBye()\r\n {\r\n System.out.println(\"Bye\");\r\n }\r\n}\r\n\r\nclass inter\r\n{\r\n public static void main(String args[])\r\n {\r\n interClass in = new interClass();\r\n \/\/ call the classes functions.\r\n in.printHi();\r\n in.printBye();\r\n }\r\n}\r\n<\/pre>\nIf you save as inter.java, and then run the output will be<\/p>\n
\r\nHi\r\nBye\r\n<\/pre>\nThere can be many interfaces per class to be implemented.<\/p>\n","protected":false},"excerpt":{"rendered":"
An interface describes what functions an implemented class will have to code. E.g. if a class was a car and the interface had functions for how many doors etc, then a class of Vauxhall that implements the interface would have to code the function to return the correct amount of doors. Here is the code, … Continue reading Interfaces<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[401,398,400],"class_list":["post-201","post","type-post","status-publish","format-standard","hentry","category-java","tag-java","tag-linux","tag-windows"],"_links":{"self":[{"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/posts\/201","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/comments?post=201"}],"version-history":[{"count":1,"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/posts\/201\/revisions"}],"predecessor-version":[{"id":202,"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/posts\/201\/revisions\/202"}],"wp:attachment":[{"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/media?parent=201"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/categories?post=201"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.codingfriends.com\/index.php\/wp-json\/wp\/v2\/tags?post=201"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}