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What is a Nested interface?

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Pragya Keshap answered on February 4, 2023 Popularity 6/10 Helpfulness 1/10

answer What is a Nested interface?

What is a Nested interface?

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A Nested interface is declared inside another interface or a toplevel class. By default it is static.

A Nested interface is also known as Static interface

class A{  
  interface Message{  
   void msg();  
  }  
}  
  
class TestNestedInterface2 implements A.Message{  
 public void msg(){System.out.println("Hello nested interface");}  
  
 public static void main(String args[]){  
  A.Message message=new TestNestedInterface2();//upcasting here  
  message.msg();  
 }  
}

https://www.javatpoint.com/nested-interface#:~:text=An%20interface%2C%20i.e.%2C%20declared%20within,can't%20be%20accessed%20directly.

Popularity 6/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: java nested

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