package lab06;

import java.util.Scanner;

public class XeTai extends XeOTo{ 

    String maXe;

    String bienSoXe;

    float trongTai;

    public XeTai() {

        super();

       ;

       ;

        trongTai=0;

    }

    public XeTai(String ten, String hang, int nam, String ma, String bsx, float tt) {

        super(ten, hang, nam);

        maXe=ma;

        bienSoXe=bsx;

        trongTai=tt;

    }

    public void nhapThongTin(){

        Scanner sc=new Scanner(System.in);

        System.out.println("Nhap ma xe: ");

        maXe=sc.nextLine();

        System.out.println("Nhap ten xe: ");

        tenXe=sc.nextLine();

        System.out.println("Nhap bien so xe: ");

        bienSoXe=sc.nextLine();

        System.out.println("Nhap hang san xuat: ");

        hangSX=sc.nextLine();

        System.out.println("Nhap nam san xuat: ");

        namSX=sc.nextInt();

        System.out.println("Nhap trong tai: ");

        trongTai=sc.nextFloat();

    }

    public void hienThiThongTin(){

        System.out.println("Ma xe: "+maXe);

        System.out.println("Ten xe: "+tenXe);

        System.out.println("Bien so xe: "+bienSoXe);

        System.out.println("Hang san xuat: "+hangSX);

        System.out.println("Nam san xuat: "+namSX);

        System.out.println("Trong tai: "+trongTai);

    }

}

************************************************************************

package lab06;

public class XeOTo {  

    String tenXe;

    String hangSX;

    int namSX;

    public XeOTo() {

       ;

       ;

        namSX=0;

    }

    public XeOTo(String ten, String hang, int nam) {

        tenXe=ten;

        hangSX=hang;

        namSX=nam;

    }   

}

************************************************************************

package lab06;

import java.util.Scanner;

public class QuanLyXeTai {  

    public QuanLyXeTai() {

    }     

    public static void main(String[] args) {     

        int chon, i, n=0;

        Scanner sc=new Scanner(System.in);

        XeTai xt[]=new XeTai[100];

        do{

            //In menu

            System.out.println("1. Nhap them mot xe tai.");

            System.out.println("2. Tim kiem xe tai.");

            System.out.println("3. Danh sach xe tai.");

            System.out.println("4. Ket thuc!");

            //Nhap gia tri chon

            System.out.println("Nhap so de chon cong viec: ");

            chon=sc.nextInt();

            //xu ly

            if(chon==1){

                xt[n]=new XeTai();

                System.out.println("Nhap thong tin xho xe tai: ");

                xt[n].nhapThongTin();

                n++;

            }

            else if(chon==2){

                System.out.println("Nhap vao bien so xe can tim: ");

                sc.nextLine();

                String bsx=sc.nextLine();

                for(i=0;i<n;i++){

                    if(xt[i].bienSoXe.equals(bsx)){

                        System.out.println("Xe tai ban can tim la: ");

                        xt[i].hienThiThongTin();

                        break;

                    }

                }

                if(i==n){

                    System.out.println("Khong tim duoc xe tai co bien so: "+bsx);

                }

            }

            else if(chon==3){

                XeTai obj=new XeTai();

                for(i=0;i<n;i++){

                    for(int k=i;k<n;k++){

                        if(xt[i].trongTai>xt[k].trongTai){

                            obj=xt[i];

                            xt[i]=xt[k];

                            xt[k]=obj;

                        }

                    }

                }                System.out.println("********************************************");

                System.out.println("DANH SACH XE TAI");

                for(i=0;i<n;i++){

                    System.out.println("Thong tin xe tai thu "+(i+1)+" la: ");

                    xt[i].hienThiThongTin();

                }

            }

            else if(chon==4){

                System.out.println("Ket thuc chuong trinh.");

            }

            else{

                System.out.println("Gia tri chon khong dung. Moi ban chon lai!");

            }

        }while(chon!=4);

    }   }