In this part of tutorial we will discuss how do you know that whether a given class is an "Interface" or a "Class"?

Examine Interface Example

     

In this part of tutorial we will discuss how do you know that whether a given class is an "Interface" or a "Class"? 

To know that given class is an Interface or Class we can use  boolean method isInterface() which returns true if given class is an Interface and false if it is a class.

 

 

 

 

 

Here is the code for this example:

import java.lang.reflect.*; public class ExamineInterface {   public static void main(String str[]){   Class cls = java.util.List.class;   Class[] intfs = cls.getInterfaces();   int len = intfs.length;   for (int i =0; i < len; i++){  System.out.println("Interface name is -->"   + intfs[i].getName());  if (intfs[i].isInterface()) {  System.out.println(intfs[i].getName()    + " is an interface.");  } else {  System.out.println(intfs[i].getName()     + " is a class.");   }    }   } }

Output:

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