Program atm dengan java

*untuk pertama membuat class atm yang berisi tentang menu atm&menjelaskan isi dalam daftar menu atm*

public class ATM {

    String nasabah; double saldo; int nTransaksi=0;

    Histori[] histori = new Histori[10];

    public ATM(){}

    public ATM(String nasabah, double saldo){

        this.nasabah=nasabah;

        this.saldo=saldo }

    void menuUtama(){

        System.out.println("ATM\n\n");

        System.out.println("1. Tarik tunai");

        System.out.println("2. Setor tunai");

        System.out.println("3. Info Saldo");

        System.out.println("4. Histori transaksi");

        System.out.println("0. Keluar\n");

        System.out.print("Masukkan pilihan :"); }

    void menuTarik(){

        System.out.println("ATM\n\n");

        System.out.println("1. Tarik tunai\n");

        System.out.println("saldo anda :"+this.saldo+"\n");

        System.out.print("Masukkan nominal :");}

    void tarikTunai(double nominal){

        if (this.saldo>=nominal){           

            histori[nTransaksi] = new Histori();

            histori[nTransaksi].jnsTransaksi = "tarikTunai";

            histori[nTransaksi].saldoAwal = this.saldo;

            histori[nTransaksi].saldoAhir = this.saldo-=nominal;

            nTransaksi++;

        } else {

      System.out.println("Saldo anda tidak mencukupi");}

    }

 void menuSetor(){

        System.out.println("ATM\n\n");

        System.out.println("2. Setor tunai\n");

        System.out.println("saldo anda :"+this.saldo+"\n");

        System.out.print("Masukkan nominal :");}

   void setorTunai(double nominal){

            histori[nTransaksi] = new Histori();

            histori[nTransaksi].jnsTransaksi = "setorTunai";

            histori[nTransaksi].saldoAwal = this.saldo;

            histori[nTransaksi].saldoAhir = this.saldo+=nominal;

            nTransaksi++; }

   void ceksaldo(){

        System.out.println("Saldo Anda : "+this.saldo); }

      void menuHistori(){

        System.out.println("ATM\n\n");

        System.out.println("4. Histori Transaksi\n");

        System.out.println("No.\tJenis Transaksi\t\t nominal \t\tSaldo Awal\t\tSaldo Ahir");

        for(int n=0;n<this.nTransaksi;n++) {

      System.out.println(n+".\t"+histori[n].jnsTransaksi+"\t\t"+histori[n].saldoAwal+"\t\t"+histori[n].saldoAhir);

        }

    }

}

*untuk class yang kedua menjalankan program atm*

public class ATMberaksi {

    public static void main(String[] args) {

        Scanner inputan = new Scanner(System.in);

        ATM atm = new ATM("Fajar",9000);

        int pil=0; double nominal;

        do {

            atm.menuUtama();

            pil=inputan.nextInt();

            switch (pil) {

                case 1:

                    atm.menuTarik();

                    nominal=inputan.nextDouble();

                    atm.tarikTunai(nominal);

                    break;

                case 2:

                    atm.menuSetor();

                    nominal=inputan.nextDouble();

                    atm.setorTunai(nominal);

                    break;

                case 3:

                    atm.ceksaldo();

                    break;

                case 4:

                    atm.menuHistori();

                    break;

            }

        } while(pil!=0);

    }

}

*untuk class yang terakhr tentang histori / transaksi atm *

public class Histori {

    String jnsTransaksi;

    double saldoAwal, saldoAhir;

    public Histori(){

    }

}

* semoga bermanfaat bagi kalian*

program elevator dengan java

membuat program elevator dengan menggunakan java

public class elevator {
        final int BOTTOM_FLOOR=1;
        final int CAPACITY=450;
        final int TOP_FLOOR=5;
        private int current_floor;
        private boolean doorOpened;
        private int weight;

        public elevator(int current_floor, int weight){
            this.current_floor=current_floor;
            this.doorOpened=false;
            this.weight=weight;
        }
        void bongkarMuat(int toWeight){
            this.weight=toWeight;
        }
        void goUp(int toFloor){
            if(doorOpened==false){
                if(current_floor!=TOP_FLOOR){
                    if(weight<=CAPACITY){
                        if(current_floor<toFloor && toFloor<TOP_FLOOR){
                            current_floor=toFloor;
                            System.out.println("Lift Naik Ke Lantai "+toFloor);
                        }
                        else{
                            System.out.println("Salah Inputan");
                        }
                    }
                    else{
                        System.out.println("Overload!!!");
                    }
                }
                else{
                    System.out.println("Sudah Di Lantai Paling Atas");
                }
            }
            else{
                System.out.println("Pintu Masih Terbuka, Tutup Dahulu");
            }
        }
        void goDown(int toFloor){
            if(doorOpened==false){
                if(current_floor!=BOTTOM_FLOOR){
                    if(weight<=CAPACITY){
                        if(current_floor>toFloor && toFloor>BOTTOM_FLOOR){
                            current_floor=toFloor;
                            System.out.println("Lift Turun Ke Lantai "+toFloor);
                        }
                        else{
                            System.out.println("Salah Inputan");
                        }
                    }
                    else{
                        System.out.println("Overload!!!");
                    }
                }
                else{
                    System.out.println("Sudah Di Lantai Paling Bawah");
                }
            }
            else{
                System.out.println("Pintu Masih Terbuka, Tutup Dahulu");
            }
        }
        void openDoor(){
            if(doorOpened==false){
                doorOpened=true;
                System.out.println("Pintu Terbuka");
            }
            else{
                System.out.println("Pintu Sudah Terbuka Um");
            }
        }
        void closeDoor(){
            if(doorOpened==true){
                doorOpened=false;
                System.out.println("Pintu Tertutup");
            }
            else{
                System.out.println("Pintu Sudah Tertutup Um");
            }
        }
}








* untuk selanjutnya buka kelas lagi dan buat program seperti ini.*
public class elevatorBeraksi {
    public static void main(String[] args) {
        elevator liftUdinus = new elevator(1, 345);


        liftUdinus.goUp(8);
        liftUdinus.goUp(4);
        liftUdinus.openDoor();
        liftUdinus.goUp(4);
        liftUdinus.bongkarMuat(467);
        liftUdinus.closeDoor();
        liftUdinus.goUp(5);
        liftUdinus.goDown(3);
        liftUdinus.goDown(3);
        liftUdinus.closeDoor();
        liftUdinus.goDown(1);
        liftUdinus.goDown(3);
    }
}