Best Java Interface Example ,Core Java Tutorial,Java Interview Questions

Java interface example :
In this class i implement Java shape interface in the circle class .as you will see in the following example ,up-casting for the object "circleshape" .

Note :
Interface classes , functions are public and abstract ,and fields are public and final

public class Main {    
    public static void main(String[] args) {
          shape circleshape=new circle();

interface shape
     public   String baseclass="shape";
     public void Draw();    
class circle implements shape
    public void Draw() {
        System.out.println("Drawing Circle here");

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