java(polymorphisome)

 package com.company;

interface  Mycamera{
    void TakeSnap();
    void recordvideo();
    //keu use korte prbe na for private,but fayeda hoy
    //jokhn default method onek boro hoy tokhn private method e rekhe ,private method use korte prbo
    private  void great(){
        System.out.println("good night........");
    }
    //default method add kora jay jokhn new inrerface er intilize er sathei method declare korar jonno,
    //jodi pore method declas kora hoy tale r default kaj korbe na
    default  void record4kvideo(){
        great();
        System.out.println("recording in 4k......");
    }

}
interface Mywifi{
    String[] getNetworks();
    void connecttonetwork(String network);
}

class Cellphone{
    void callnumber(int phonenumber){
        System.out.println("calling..."+phonenumber);
    }
    void pickcall(){
        System.out.println("connecting....");
    }

}

class MYsmartphone extends Cellphone implements Mywifi,Mycamera {

    public void TakeSnap() {
        System.out.println("taking snap");
    }
    //public void record4kvideo() {
    //  System.out.println("taking snap and hd... record video.   in 4k.....");
    //}

    public void recordvideo() {
        System.out.println("taking video");
    }

    public String[] getNetworks() {
        System.out.println("getting list of network");
        String[] networklist = {"voda", "idea", "jio", "airtel"};
        return networklist;
    }
    public  void connecttonetwork(String network) {
        System.out.println("connecting to" +network);
    }
public  void samplemethod(){
    System.out.println("method");
}
}



public class cwh_chapter11_polymorphisome_in_interface {
    public static void main(String[] args) {
        Mycamera cam=new MYsmartphone();
        //cam.getNetworks();-----------not allowed for goods
        //cam.getNetworks();
        cam.record4kvideo();
        //cam.samplemethod();-----------not allowed
        MYsmartphone c2= new MYsmartphone();
        c2.samplemethod();
        c2.recordvideo();
        c2.getNetworks();
        c2.callnumber(98);


    }
}