{"id":142337,"date":"2024-05-23T15:11:00","date_gmt":"2024-05-23T09:41:00","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=142337"},"modified":"2024-05-23T15:11:00","modified_gmt":"2024-05-23T09:41:00","slug":"types-of-interface-in-java","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/types-of-interface-in-java\/","title":{"rendered":"Types of Interface in Java"},"content":{"rendered":"<h3>Program 1<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/  @FunctionalInterface\r\n\/\/  interface MyInter1\r\n\/\/  {\r\n\/\/    void a1();\r\n\r\n\/\/  }\r\ninterface First\r\n{\r\n     void a1();\r\n}\r\ninterface Second\r\n{\r\n     void a2();\r\n}\r\n\r\nclass MyClass implements First,Second    \/\/ Multiple Inheritance\r\n{\r\n     public void a1()\r\n     {\r\n        System.out.println(\"Method of First Interface\");\r\n     }\r\n     public void a2()\r\n     {\r\n        System.out.println(\"Method of Second Interface\");\r\n     }\r\n}\r\n  class TestTypeInter\r\n  {\r\n      public static void main(String args[])\r\n      {\r\n            MyClass M1=new MyClass();\r\n            M1.a1();\r\n            M1.a2();\r\n     }\r\n  }\r\n\r\n\r\n\r\n\r\n\r\n\r\n\/* \r\n     Normal Interface\r\n     Marker or Markable Interface\r\n     Functional Interface\r\n     Multiple Inhertance Interface\r\n     Single abstract method Interface\r\n*\/\r\n\r\n\/\/ Normal Interface\r\n\/\/   interface MyInter\r\n\/\/   {\r\n\/\/       void display();\r\n\/\/       void show();\r\n\/\/   }\r\n\/\/   class MyClass implements MyInter\r\n\/\/   {\r\n\/\/         public void display()\r\n\/\/         { \r\n\/\/             System.out.println(\"This is display method\");\r\n\/\/         }\r\n\/\/         public void show()\r\n\/\/         { \r\n\/\/         }\r\n\/\/   }\r\n\/\/ import java.io.*;\r\n\/\/ class Student implements Serializable\r\n\/\/ {\r\n\/\/         private int rno;\r\n\/\/         private String name;\r\n\/\/         private String course;\r\n\/\/         Student(int rno,String name,String course)\r\n\/\/         {\r\n\/\/               this.rno=rno;\r\n\/\/               this.name=name;\r\n\/\/               this.course=course;\r\n\/\/         }\r\n\/\/         public String toString()\r\n\/\/         {\r\n\/\/               return this.rno + \"  \" + this.name + \"   \"+ this.course;\r\n\/\/         }\r\n\/\/ }\r\n\/\/   class TestTypeInter\r\n\/\/   {\r\n\/\/       public static void main(String args[])\r\n\/\/       {\r\n\/\/         try\r\n\/\/         {\r\n\/\/         \/\/     Student S1=new Student(101,\"Dipesh Gupta\",\"Mtech\");\r\n\/\/              File f=new File(\"d:\/\/javadata\/\/student.txt\");\r\n\/\/         \/\/     FileOutputStream fos=new FileOutputStream(f);\r\n\/\/         \/\/    ObjectOutputStream oos=new ObjectOutputStream(fos);\r\n\/\/         \/\/    oos.writeObject(S1);\r\n\/\/         \/\/     fos.close();\r\n\/\/               FileInputStream fis=new FileInputStream(f);\r\n\/\/               ObjectInputStream ois=new ObjectInputStream(fis);       \r\n\/\/               Student S=(Student)(ois.readObject());\r\n\/\/               System.out.println(S);\r\n\/\/               ois.close();\r\n\/\/               fis.close();\r\n\/\/         }\r\n\/\/         catch(Exception e)    \r\n\/\/         {\r\n\/\/              System.out.println(e);\r\n\/\/         }\r\n\/\/   \/\/      System.out.println(\"File Created..........\");\r\n\/\/       }\r\n\/\/   }<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Program 1 \/\/ @FunctionalInterface \/\/ interface MyInter1 \/\/ { \/\/ void a1(); \/\/ } interface First { void a1(); } interface Second { void a2(); } class MyClass implements First,Second \/\/ Multiple Inheritance {&#46;&#46;&#46;<\/p>\n","protected":false},"author":86671,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[7345,29859,29858,32227,32226,32228,15065],"class_list":["post-142337","post","type-post","status-publish","format-standard","hentry","category-java","tag-java","tag-java-practical","tag-java-program","tag-java-program-on-types-of-interface","tag-java-types-of-interface","tag-types-of-interface","tag-types-of-interface-in-java"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Types of Interface in Java - DataFlair<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/data-flair.training\/blogs\/types-of-interface-in-java\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Types of Interface in Java - DataFlair\" \/>\n<meta property=\"og:description\" content=\"Program 1 \/\/ @FunctionalInterface \/\/ interface MyInter1 \/\/ { \/\/ void a1(); 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