การ implement Method Overriding

// Define Phone class extending Device
class Phone ____ Device { 
    // Override the turnOn() method
    @____
    void turnOn() {
        System.out.println("Phone is turning on");
    }
    public static void main(String[] args) {
    	// Create instance of Phone
        Phone p = new ____(); 
        
        //Call turnOn() from phone instance
        p.____();
    }
}

class Device {
    void turnOn() {
        System.out.println("Device is turning on");
    }
}