public class Main {

    public static void main(String[] args) {
        MobilePhone phone = new MobilePhone("200 grammes", 1500);


        String parameters = phone.getParameters();
        System.out.println(parameters);
        phone.displayPrice ();
        phone.lowerPrice ();
        phone.higherPrice ( 500 );




    }

}

class MobilePhone {
    String weight;
    int price;

    public MobilePhone ( String weight, int price ) {
        this.weight = weight;
        this.price = price;
    }

    public void displayValues ( ) {
        System.out.println ( this.weight + " " + this.price );
    }

    public String getParameters ( ) {
        return "This phone weights " + this.weight + ", and it's nominal price is " + this.price;
    }

    public void displayPrice ( ) {
        System.out.println("This phone's price is " + this.price + "zł");
    }
    public void lowerPrice ( ) {
        int percent = (this.price * 10) / 100;
        this.price = (this.price - percent);
        System.out.println ("\n\n ***SPECIAL OFFER!!***\n\n BUY TODAY " +
        "AND SAVE 10% OF IT'S PRICE!!! \n\n " + this.price + "zł" +
        "\n\nSEE HOW MUCH YOU SAVE!!" );
    }
    public void higherPrice (int a){
        int x = this.price + a;
        System.out.println ("****LAST CHANCE!! TOMORROW THE PRICE WILL SKYROCKET TO****\n\n" + x);
    }





}