dynamic_method.java

package com.company;

class Phone{
 public void showTime(){
 System.out.println("Time is 8 am");
 }
 public void on()
 {
 System.out.println("Turning on the phone");
 }
}
class Smartphone extends Phone{
 public void music()
 {
 System.out.println("Play music");
 }

 @Override
 public void on() {
 System.out.println("Turning on smartphone");
 }
}
public class dynamic_method {
 public static void main(String[] args) {
 Phone s1=new Smartphone();
 s1.on();
 s1.showTime();
 }
}