TrukC

class Trukk{
    final double N = 9.8;
    double muat=0;
    double maks;
    public Trukk(double inp){
        maks=inp * N;
    }
    public double newstsToKilo(double inp){
        return inp/9.8;
    }
    public double kiloToNewsts(double inp){
        return inp * 9.8;
    }
    public boolean tambahMuatan(double inp){
        muat+= N * inp;
        if(muat>maks){
            muat-=(inp*N);
            return false;
        }
        else
            return true;
    }
    public double getMuatan(){
        return muat/N;
    }

    public double getMuatanMaks(){
        return maks/N;
    }
}
public class Truk{
    public static void main(String args[]){
    boolean status;
    Trukk truk = new Trukk(900);
    System.out.println("Muatan maksimal = "+truk.getMuatanMaks());
    status = truk.tambahMuatan(500.0);
    System.out.println("Tambah muatan : 500");
    //System.out.println("Muatan sekarang = " + truk.getMuatan());
    if (status)
        System.out.println("Ok");
    else
        System.out.println("Gagal");
        status = truk.tambahMuatan(300.0);
        System.out.println("Tambah muatan : 300");
        //System.out.println("Muatan sekarang = " + truk.getMuatan());
    if (status)
        System.out.println("Ok");
    else
        System.out.println("Gagal");
        status = truk.tambahMuatan(150.0);
        System.out.println("Tambah muatan : 150");
        //System.out.println("Muatan sekarang = " + truk.getMuatan());
    if (status)
        System.out.println("Ok");
    else
        System.out.println("Gagal");
        status = truk.tambahMuatan(50.0);
        System.out.println("Tambah muatan : 50");
        //System.out.println("Muatan sekarang = " + truk.getMuatan());
    if (status)
        System.out.println("Ok");
    else
        System.out.println("Gagal");
        System.out.println("Muatan sekarang = " + truk.getMuatan());
    }
}