package app;

class Charger {
    public int getElectricity() {
        return 10;
    }
}

class Handphone {
    private Charger charger = new Charger();
    private Integer battery = 0;

    public void charge() {
        this.battery = this.battery + this.charger.getElectricity();
    }

    public int checkBatteryStatus() {
        return this.battery;
    }
}

public class Contoh1 {
    public static void main(String[] args) {
        Handphone hp = new Handphone();

        while (hp.checkBatteryStatus() < 100) {
            System.out.print("Mengisi daya...");
            System.out.println(hp.checkBatteryStatus());
            hp.charge();
        }

        System.out.print("Selesai...");
        System.out.println(hp.checkBatteryStatus());
    }
}