CODE EXAMPLE FOR JAVA

Interfaces in Java

// Java program to demonstrate working of
// interface
  
import java.io.*;
  
// A simple interface
interface In1 {
    
    // public, static and final
    final int a = 10;
  
    // public and abstract
    void display();
}
  
// A class that implements the interface.
class TestClass implements In1 {
    
    // Implementing the capabilities of
    // interface.
    public void display(){ 
      System.out.println("Geek"); 
    }
  
    // Driver Code
    public static void main(String[] args)
    {
        TestClass t = new TestClass();
        t.display();
        System.out.println(a);
    }
}