/*

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 * and open the template in the editor.

 */

package quanly;

import java.io.Serializable;

import java.util.Scanner;

/**

 *

 * @author menguyen

 */

public class MonHoc implements Serializable{

    protected  int MaMH;

    protected String TenMH;

    protected int Loai;

    protected int SoDVHT;

    public MonHoc() {

    }

    MonHoc(int MaMH, String TenMH, int Loai, int SoDVHT){

        this.MaMH=MaMH;

        this.TenMH=TenMH;

        this.Loai=Loai;

        this.SoDVHT=SoDVHT;

    }

    public void nhap(){

        Scanner in=new Scanner(System.in);

        System.out.println("Ten Mon hoc");TenMH=in.nextLine();

        System.out.println("Loai:");Loai=Integer.parseInt(in.nextLine());

        while(Loai<1||Loai>3){

            System.out.println("Nhap lai");

            Loai=Integer.parseInt(in.nextLine());

        }

        System.out.println("So DVHT:");SoDVHT=Integer.parseInt(in.nextLine());

    }

    public void xuat(){

        System.out.println("Ten Mon hoc:"+TenMH);

        System.out.println("Loai");

        switch(Loai){

            case 1: System.out.println("Dai cuong");

            case 2: System.out.println("Co so Nganh");

            case 3: System.out.println("Chuyen Nganh");

        }

        System.out.println("So dvht:"+SoDVHT);

    }

}

    /*

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 * and open the template in the editor.

 */

package quanly;

/**

 *

 * @author menguyen

 */

public class Nguoi {

    protected String HoTen;

    protected String DiaChi;

    Nguoi(){};

    public Nguoi(String HoTen, String DiaChi){

        this.DiaChi=DiaChi;

        this.HoTen=HoTen;

    }

}

/*

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 * and open the template in the editor.

 */

package quanly;

import java.io.*;

import java.util.*;

/**

 *

 * @author menguyen

 */

public class QuanLy {

    /**

     * @param args the command line arguments

     */

    public static void main(String[] args) throws IOException, ClassNotFoundException{

       Scanner in= new Scanner(System.in);

        System.out.println("Nhap thong tin Sinh Vien");

        System.out.println("-------------------------------------------------------");

        ObjectOutputStream obj= new ObjectOutputStream(new FileOutputStream("sv.in"));

        for (int i=0;i<5;i++){

            SinhVien sv= new SinhVien();

            sv.nhap();

            obj.writeObject(sv);

        }

        System.out.println("In thong tin sv:");

        System.out.println("--------------------------------------------------------");

        ObjectInputStream obj1= new ObjectInputStream(new FileInputStream("sv.in"));

        for (int i=0;i<5;i++){

            SinhVien sv;

            sv= (SinhVien) obj1.readObject();

            sv.xuat();

        }

        System.out.println("Nhap thong tin Mon hoc:");

        System.out.println("---------------------------------------------------------");

        ObjectOutputStream obj2= new ObjectOutputStream(new FileOutputStream("MH.in"));

        for(int i=0;i<3;i++){

            MonHoc mh= new MonHoc();

            mh.nhap();

            obj.writeObject(mh);

        }

        System.out.println("In thong tin  mon hoc");

        System.out.println("----------------------------------------------------------");

        ObjectInputStream obj3= new ObjectInputStream(new FileInputStream("mh.in"));

        for(int i=0;i<3;i++){

            MonHoc mh;

            mh= (MonHoc) obj3.readObject();

            mh.xuat();

        }

    }

}

/*

 * To change this template, choose Tools | Templates

 * and open the template in the editor.

 */

package quanly;

import java.io.Serializable;

import java.util.Scanner;

/**

 *

 * @author menguyen

 */

public class SinhVien extends Nguoi implements Serializable{

    protected int MaSV;

    protected int Loai;

    protected String Lop;

    static int i=0;

    SinhVien(){MaSV=i;i++;};

    public SinhVien(int MaSV, int Loai, String Lop){

        this.MaSV=MaSV;

        this.Loai=Loai;

        this.Lop=Lop;    

    };

    public void nhap(){

        Scanner in= new Scanner(System.in);

        System.out.println("Ho Ten SV:");HoTen=in.nextLine();

        System.out.println("Dia chi:");DiaChi= in.nextLine();

       // System.out.println("Loai:");Loai=Integer.parseInt(in.nextLine());

        System.out.println("Lop:"); Lop=in.nextLine();

        System.out.println("Loai");Loai=in.nextInt();

        while(Loai<1||Loai>3){

            System.out.println("nhap lai");

            Loai=in.nextInt();

        }

    }

    public void xuat(){

        System.out.println("Ho Ten: "+HoTen);

        System.out.println("Dia Chi"+DiaChi);

        System.out.println("Lop"+Lop);

        System.out.println("Loai");

        switch(Loai){

            case 1: System.out.println("chinh quy");break;

            case 2: System.out.println("Tai chuc");break;

            case 3: System.out.println("Tu xa");break;

        }

    }

}