2020-03-26 11:32:32

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package BTQuanliSach;

/**
 *
 * @author Thien Phu
 */
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
import java.io.Serializable;
import java.util.Scanner;

/**
 *
 * @author Thien Phu
 */
public class Book implements Serializable {

    String tenSach, tenTg, gia, nhaXB, ngaySx;

    public Book() {
    }

    public Book(String tenSach, String tenTg, String gia, String ngayXb, String ngaySx) {
        this.tenSach = tenSach;
        this.tenTg = tenTg;
        this.gia = gia;
        this.nhaXB = ngayXb;
        this.ngaySx = ngaySx;
    }

    public String getTenSach() {
        return tenSach;
    }

    public void setTenSach(String tenSach) {
        this.tenSach = tenSach;
    }

    public String getTenTg() {
        return tenTg;
    }

    public void setTenTg(String tenTg) {
        this.tenTg = tenTg;
    }

    public String getGia() {
        return gia;
    }

    public void setGia(String gia) {
        this.gia = gia;
    }

    public String getNgayXb() {
        return nhaXB;
    }

    public void setNgayXb(String ngayXb) {
        this.nhaXB = ngayXb;
    }

    public String getNgaySx() {
        return ngaySx;
    }

    public void setNgaySx(String ngaySx) {
        this.ngaySx = ngaySx;
    }

    @Override
    public String toString() {
        return "Book{" + "tenSach=" + tenSach + ", tenTg=" + tenTg + ", gia=" + gia + ", ngayXb=" + nhaXB + ", ngaySx=" + ngaySx + '}';
    }

    public void input() {
        Scanner sc = new Scanner(System.in);
        System.out.println("Nhap ten:");
        tenSach = sc.nextLine();
        System.out.println("Nhap ten Tac Gia:");
        tenTg = sc.nextLine();
        System.out.println("Nhap gia ban");
        gia = sc.nextLine();
        System.out.println("Nhap ngay san xuat");
        ngaySx = sc.nextLine();
        System.out.println("Nhap nha xuat ban");
        nhaXB = sc.nextLine();
    }

    public void display() {
        System.out.println(toString());
    }

    public String getLine() {
        return tenSach + "," + tenTg + "," + gia + "," + ngaySx + "," + nhaXB + "\n";
    }
}

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package BTQuanliSach;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Scanner;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.zip.DeflaterInputStream;

/**
 *
 * @author Thien Phu
 */
public class BookManage {

    private List<Book> listbook = new ArrayList<>();

    public BookManage() {
    }

    public void addbook() {
        Scanner sc = new Scanner(System.in);
        System.out.println("Nhap N thong tin quan sach:");
        int n = Integer.parseInt(sc.nextLine());
        for (int i = 0; i < n; i++) {
            Book bk = new Book();
            bk.input();
            listbook.add(bk);
        }
    }
 public void sortbyName() {
        Collections.sort(listbook, new Comparator<Book>() {

            @Override
            public int compare(Book o1, Book o2) {
                return o1.getTenTg().compareToIgnoreCase(o2.getTenTg());
            }
        });
    }
    public void hienthi() {
        for (Book listbook1 : listbook) {
            listbook1.display();
        }
    }

    public void save() throws IOException {
        FileOutputStream fos = null;
        ObjectOutputStream oos = null;

        try {
            fos = new FileOutputStream(new File("D:\\baitapjava\\BT1\\src\\BTQuanliSach\\data.obj"));
            oos = new ObjectOutputStream(fos);
            oos.writeObject(listbook);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (fos != null) {
                fos.close();
            }
            if (oos != null) {
                oos.close();
            }
        }
    }

    public void read() {
        FileInputStream fis = null;
        ObjectInputStream ois = null;
        try {
            fis = new FileInputStream(new File("D:\\baitapjava\\BT1\\src\\BTQuanliSach\\data.obj"));
            ois = new ObjectInputStream(fis);
            listbook = (List<Book>) ois.readObject();
        } catch (FileNotFoundException ex) {
            Logger.getLogger(BookManage.class.getName()).log(Level.SEVERE, null, ex);
        } catch (IOException ex) {
            Logger.getLogger(BookManage.class.getName()).log(Level.SEVERE, null, ex);
        } catch (ClassNotFoundException ex) {
            Logger.getLogger(BookManage.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            if (fis != null) {
                try {
                    fis.close();
                } catch (IOException ex) {
                    Logger.getLogger(BookManage.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
            if (ois != null) {
                try {
                    ois.close();
                } catch (IOException ex) {
                    Logger.getLogger(BookManage.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        }
    }
    
    //save file data
     public void saveFiledata() {
        FileOutputStream fos = null;
        BufferedOutputStream bos = null;

        try {
            String filename = "D:\\baitapjava\\BT1\\src\\BTQuanliSach\\data.txt";
            fos = new FileOutputStream(filename);
            bos = new BufferedOutputStream(fos);
            //ghi du lieu vao file
            for (Book book1 : listbook) {
                String line = book1.getLine();
                try {
                    byte[] b = line.getBytes("utf8");
                    bos.write(b);

                } catch (UnsupportedEncodingException ex) {
                    Logger.getLogger(BookManage.class
                            .getName()).log(Level.SEVERE, null, ex);
                } catch (IOException e) {
                    Logger.getLogger(BookManage.class
                            .getName()).log(Level.SEVERE, null, e);
                }

            }

        } catch (FileNotFoundException ex) {
            Logger.getLogger(BookManage.class
                    .getName()).log(Level.SEVERE, null, ex);
        } finally {

            try {
                if (bos != null) {
                    bos.close();
                }
                if (fos != null) {
                    fos.close();

                }
            } catch (IOException e) {
                Logger.getLogger(BookManage.class
                        .getName()).log(Level.SEVERE, null, e);
            }
        }

    }
     
     public void nenfile() {
        String filename = "D:\\baitapjava\\BT1\\src\\BTQuanliSach\\data.txt";
        FileInputStream fis = null;
        FileOutputStream fos = null;
        try {
            fis = new FileInputStream(filename);
            DeflaterInputStream dis = new DeflaterInputStream(fis);
            String newfile = "D:\\baitapjava\\BT1\\src\\BTQuanliSach\\data.dfl";
            fos = new FileOutputStream(newfile);
            int count;
            while ((count = dis.read()) != -1) {
                fos.write(count);

            }
        } catch (FileNotFoundException ex) {
            Logger.getLogger(BookManage.class
                    .getName()).log(Level.SEVERE, null, ex);
        } catch (IOException ex) {
            Logger.getLogger(BookManage.class
                    .getName()).log(Level.SEVERE, null, ex);
        }
    }
}

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package BTQuanliSach;

/**
 *
 * @author Thien Phu
 */
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
import java.io.IOException;
import java.util.Scanner;

/**
 *
 * @author Thien Phu
 */
public class Main {

    public static void main(String[] args) throws IOException {
        BookManage bkManage = new BookManage();
        Scanner sc = new Scanner(System.in);
        int choose;
        do {
            showmenu();
            choose = Integer.parseInt(sc.nextLine());
            switch (choose) {
                case 1:
                    bkManage.addbook();

                    break;
                case 2:
                    bkManage.hienthi();
                    break;
                case 3:
                    bkManage.sortbyName();
                    break;
                case 4:
                    bkManage.save();
                    break;
                case 5:
                    bkManage.saveFiledata();
                    break;
                case 6:
                    bkManage.nenfile();
                    break;
                case 7:
                    bkManage.read();
                    bkManage.hienthi();
                    break;
                case 8:
                    System.out.println("Thoat thanh cong");
                    break;
                default:
                    System.err.println("Chon lai di");
                    break;
            }

        } while (choose != 8);
    }

    public static void showmenu() {
        System.out.println("1:Nhap thong tin N quan sach");
        System.out.println("2:Hien thi thong tin sach");
        System.out.println("3:Sap xep theo ten tac gia");
        System.out.println("4:Luu thong tin vao file data.obj");
        System.out.println("5:Luu thong tin vao file data.txt theo dinh dang");
        System.out.println("6:Nen file data.txt thanh file data.dfl");
        System.out.println("7:Doc du lieu tu file data.obj va hien thi ra man hinh");
        System.out.println("8: Thoat");
    }
}

2020-03-26 06:14:33

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package QLsach2;

import fiml.Main;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.io.UnsupportedEncodingException;
import java.util.*;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.zip.DeflaterInputStream;
import java.io.BufferedReader;
import java.io.FileReader;

/**
 *
 * @author ASUS
 */
public class main {

    public static void main(String[] args) throws IOException {
        ArrayList<book> booklist = new ArrayList<>();
        int choise, n;
        Scanner scan = new Scanner(System.in);
        do {
            menu();
            choise = Integer.parseInt(scan.nextLine());
            switch (choise) {
                case 1:
                    System.out.println("nhap thong tin cuon sach>>>.");
                    n = Integer.parseInt(scan.nextLine());
                    for (int i = 0; i < n; i++) {
                        book thao = new book();
                        thao.input();
                        booklist.add(thao);
                    }
                    break;
                case 2:
                    for (book thao : booklist) {
                        thao.display();
                    }
                    break;

                case 3:
                    Collections.sort(booklist, new Comparator<book>() {
                        @Override
                        public int compare(book o1, book o2) {
                            return o1.getName().compareToIgnoreCase(o2.getName());
                        }
                    });
                    break;
                case 4:
                    luubookobj(booklist);
                    break;
                case 5:
                    luumoicuontxt(booklist);
                    break;
                case 6:
                    nenfiletxt(booklist);
                    break;
                case 7:
                    hienthi(booklist);
                    break;
                case 8:
                    System.out.println("thoat!!!!");
                    break;
                default:
                    System.out.println("nhap lai de!!!1");
                    break;
            }
        } while (choise != 9);
    }

    static void menu() {
        System.out.println("1.nhap thong tin cuon sach");
        System.out.println("2.hien thi thong tin cuon sach");
        System.out.println("3.Sap xep theo ten tac gia");
        System.out.println("4.luu thong tin sach vao file data.obj");
        System.out.println("5.luu thong tin moi cuon sach vao data.txt");
        System.out.println("6.nen file data.txt thanh data.dfl");
        System.out.println("7.doc dl tu file data.obj vao hien thi ra man hinh");
        System.out.println("8.Thoat");
        System.out.println("9.choise");
    }

    private static void luubookobj(ArrayList<book> booklist) throws FileNotFoundException, IOException {
        FileOutputStream fos = null;
        ObjectOutputStream oos = null;
        try {
            fos = new FileOutputStream("E:/file/mydata.obj");
            oos = new ObjectOutputStream(fos);
            oos.writeObject(booklist);
        } catch (FileNotFoundException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            if (fos != null) {
                try {
                    fos.close();
                } catch (IOException ex) {
                    Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
            if (oos != null) {
                try {
                    oos.close();
                } catch (IOException ex) {
                    Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        }
    }

    private static void luumoicuontxt(ArrayList<book> booklist) throws FileNotFoundException, UnsupportedEncodingException, IOException {
        FileOutputStream fos = null;
        BufferedOutputStream bos = null;
        try {
            String filename = "data.txt";
            fos = new FileOutputStream(filename);
            bos = new BufferedOutputStream(fos);
            for (book thao : booklist) {
                String line = thao.getLine();
                byte[] t;
                try {
                    t = line.getBytes("utf8");
                    bos.write(t);
                } catch (UnsupportedEncodingException ex) {
                    Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
                } catch (IOException ex) {
                    Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        } catch (FileNotFoundException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            try {
                if (fos != null) {
                    fos.close();
                }
                if (bos != null) {
                    bos.close();
                }
            } catch (IOException ex) {
                Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
    }

    private static void nenfiletxt(ArrayList<book> booklist) throws FileNotFoundException, IOException {
        String filename = "data.txt";
        FileInputStream fis = new FileInputStream(filename);//tao dl de doc
        DeflaterInputStream dis = new DeflaterInputStream(fis);//doc dl fis va nen luon
        String dfl = "data.dfl";//sang file moi
        FileOutputStream fos = new FileOutputStream(dfl);
        int code = 0;
        while ((code = dis.read()) != -1) {
            fos.write(code);
        }
        fos.close();
        dis.close();
        fis.close();
    }

    private static void hienthi(ArrayList<book> booklist) throws FileNotFoundException {
        FileReader fil = null;
        BufferedReader buff = null;
        try {
            String filename = "data.txt";
            fil = new FileReader(filename);
            buff = new BufferedReader(fil);
            String thaobeo = null;
            while ((thaobeo = buff.readLine()) != null) {
                book thao = new book();
                thao.parseLine(thaobeo);
                booklist.add(thao);
            }
        } catch (FileNotFoundException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        } catch (IOException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            try {
                if (buff != null) {
                    buff.close();
                }
                if (fil != null) {
                    fil.close();
                }
            } catch (IOException ex) {
                Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
            }
        }

    }
}
/////
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package QLsach2;

import java.util.*;

/**
 *
 * @author ASUS
 */
public class book {

    String bookname, name, nhasx;
    float giaban, ngaysx;

    public book() {
    }

    public book(String bookname, String name, String nhasx, float giaban, float ngaysx) {
        this.bookname = bookname;
        this.name = name;
        this.nhasx = nhasx;
        this.giaban = giaban;
        this.ngaysx = ngaysx;
    }

    public String getBookname() {
        return bookname;
    }

    public void setBookname(String bookname) {
        this.bookname = bookname;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getNhasx() {
        return nhasx;
    }

    public void setNhasx(String nhasx) {
        this.nhasx = nhasx;
    }

    public float getGiaban() {
        return giaban;
    }

    public void setGiaban(float giaban) {
        this.giaban = giaban;
    }

    public float getNgaysx() {
        return ngaysx;
    }

    public void setNgaysx(float ngaysx) {
        this.ngaysx = ngaysx;
    }

    public void input() {
        Scanner scan = new Scanner(System.in);
        System.out.println("nhap tean sach");
        bookname = scan.nextLine();
        System.out.println("nhap ten tac gia:");
        name = scan.nextLine();
        System.out.println("nhap ten nha suat ban:");
        nhasx = scan.nextLine();
        System.out.println("nhap gia ban:");
        giaban = Float.parseFloat(scan.nextLine());
        System.out.println("nhap ngay san xuat:");
        ngaysx = Float.parseFloat(scan.nextLine());
    }

    public void display() {
        System.out.println(toString());
    }

    @Override
    public String toString() {
        return "book{" + "bookname=" + bookname + ", name=" + name + ", nhasx=" + nhasx + ", giaban=" + giaban + ", ngaysx=" + ngaysx + '}';
    }
    String getLine() {
        return name + "," + bookname + "," + nhasx + "," + giaban + "," + ngaysx + "\n";
    }
    public void parseLine(String line){
        line=line.trim();
        String [] thao=line.split(line);
        if(thao.length<5){
            System.out.println("!!!!!!!");
            return;
        }
        name=thao[0];
        bookname=thao[1];
        nhasx=thao[2];
        giaban=Float.parseFloat(thao[3]);
        ngaysx=Float.parseFloat(thao[4]);
    }

}

2020-03-26 03:54:05

package java2_Advanced.BaiTapNgay25_3_2020.SachVaLuuThongTinTrenFile;

import java.io.Serializable;
import java.util.Scanner;

public class Book implements Serializable {
    String nameBook, nameAuthor, price, publicationDate, publishingCompany;

    public Book() {
    }

    public Book(String nameBook, String nameAuthor, String price, String publicationDate, String publishingCompany) {
        this.nameBook = nameBook;
        this.nameAuthor = nameAuthor;
        this.price = price;
        this.publicationDate = publicationDate;
        this.publishingCompany = publishingCompany;
    }

    public void nhap() {
        Scanner scan = new Scanner(System.in);
        System.out.println("Nhap ten sach: ");
        nameBook = scan.nextLine();
        System.out.println("Nhap ten tac gia: ");
        nameAuthor = scan.nextLine();
        System.out.println("Nhap gia ban: ");
        price = scan.nextLine();
        System.out.println("Nhap ngay xuat ban: ");
        publicationDate = scan.nextLine();
        System.out.println("Nhap nha xuat ban: ");
        publishingCompany = scan.nextLine();
    }

    public void hienThi() {
        System.out.println(this);
    }

    @Override
    public String toString() {
        return "Book{" +
                "nameBook='" + nameBook + '\'' +
                ", nameAuthor='" + nameAuthor + '\'' +
                ", price='" + price + '\'' +
                ", publicationDate='" + publicationDate + '\'' +
                ", publishingCompany='" + publishingCompany + '\'' +
                '}';
    }

    public String getNameBook() {
        return nameBook;
    }

    public void setNameBook(String nameBook) {
        this.nameBook = nameBook;
    }

    public String getNameAuthor() {
        return nameAuthor;
    }

    public void setNameAuthor(String nameAuthor) {
        this.nameAuthor = nameAuthor;
    }

    public String getPrice() {
        return price;
    }

    public void setPrice(String price) {
        this.price = price;
    }

    public String getPublicationDate() {
        return publicationDate;
    }

    public void setPublicationDate(String publicationDate) {
        this.publicationDate = publicationDate;
    }

    public String getPublishingCompany() {
        return publishingCompany;
    }

    public void setPublishingCompany(String publishingCompany) {
        this.publishingCompany = publishingCompany;
    }

    public String getLine() {
        return nameBook + ", " + nameAuthor + ", " + price + ", " + publicationDate + ", " + publishingCompany + ", " + "\n";
    }
}

package java2_Advanced.BaiTapNgay25_3_2020.SachVaLuuThongTinTrenFile;

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Perform perform = new Perform();
        Scanner scan = new Scanner(System.in);
        int choose;
        do {
            System.out.println("Nhap choose:");
            choose = Integer.parseInt(scan.nextLine());
            switch (choose) {
                case 1:
                    perform.input();
                    break;
                case 2:
                    perform.display();
                    break;
                case 3:
                    perform.sortAuthor();
                    break;
                case 4:
                    perform.saveBook1_Object();
                    break;
                case 5:
                    perform.saveBook_buffered();
                    break;
                case 6:
                    perform.zipFile();
                    break;
                case 7:
                    perform.showBook1_Object();
                    break;
                case 8:
                    System.out.println("thoat");
                    break;
                default:
                    System.err.println("Nhap sai !!!");
                    break;
            }
        } while (choose != 8);
    }

    static void showMenu() {
        System.out.println("1. Nhập thông tin N quấn sách");
        System.out.println("2. Hiển thị thông tin sách");
        System.out.println("3. Sắp xếp theo tên tác giả");
        System.out.println("4. Lưu thông tin sách vào file data.obj");
        System.out.println("5. Lưu thông tin mỗi quyển sách vào file data.txt (mỗi quyển sách trên một dòng)");
        System.out.println("6. Nén file data.txt thành file data.dfl");
        System.out.println("7. Đọc dữ liệu từ file data.obj và hiển thị ra màn hình");
        System.out.println("8. Thoát");
    }
}

package java2_Advanced.BaiTapNgay25_3_2020.SachVaLuuThongTinTrenFile;

import org.w3c.dom.ls.LSOutput;

import java.io.*;
import java.util.*;
import java.util.zip.DeflaterInputStream;

public class Perform {
    Scanner scan = new Scanner(System.in);
    List<Book> list = new ArrayList<>();

    //case1
    public void input() {
        System.out.println("Nhap so cuon sach:");
        int n = Integer.parseInt(scan.nextLine());
        for (int i = 0; i < n; i++) {
            Book book = new Book();
            book.nhap();
            list.add(book);
        }
    }

    //case2
    public void display() {
        for (Book book1 : list) {
            book1.hienThi();
        }
    }

    //case3
    public void sortAuthor() {
        Collections.sort(list, new Comparator<Book>() {
            @Override
            public int compare(Book book, Book t1) {
                return book.getNameAuthor().compareToIgnoreCase(book.getNameAuthor());
            }
        });
    }

    //case4
    public void saveBook1_Object() {
        FileOutputStream fos = null;
        ObjectOutputStream oos = null;
        try {
            fos = new FileOutputStream("d:/Admin/Java2_advanced/data.obj");
            oos = new ObjectOutputStream(fos);

            oos.writeObject(list);

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (oos != null) {
                try {
                    oos.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (fos != null) {
                try {
                    fos.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    //case5
    public void saveBook_buffered() {
        FileOutputStream fos = null;
        BufferedOutputStream bfos = null;
        try {
            fos = new FileOutputStream("d:/Admin/Java2_advanced/data.txt");
            bfos = new BufferedOutputStream(fos);

            for (Book book2 : list) {
                String line = book2.getLine();
                byte[] bytes = line.getBytes("utf-8");
                bfos.write(bytes);
            }

        } catch (FileNotFoundException | UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (bfos != null) {
                try {
                    bfos.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (fos != null) {
                try {
                    fos.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    //case6
    public void zipFile() {
        FileInputStream fis = null;
        FileOutputStream fos = null;
        DeflaterInputStream dis = null;

        try {
            fis = new FileInputStream("d:/Admin/Java2_advanced/data.txt");
            dis = new DeflaterInputStream(fis);
            fos = new FileOutputStream("d:/Admin/Java2_advanced/data.dfl");

            int a;
            while ((a = dis.read()) != -1) {
                fos.write(a);
            }

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (fos != null) {
                try {
                    fos.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (dis != null) {
                try {
                    dis.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (fis != null) {
                try {
                    fis.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    //case7
    public void showBook1_Object() {
        FileInputStream fis = null;
        ObjectInputStream ois = null;
        try {
            fis = new FileInputStream("d:/Admin/Java2_advanced/data.obj");
            ois = new ObjectInputStream(fis);

            ArrayList<Book> List = (ArrayList<Book>) ois.readObject();

            for (Book object : List) {
                object.hienThi();
            }

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        } finally {
            if (ois != null) {
                try {
                    ois.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (fis != null) {
                try {
                    fis.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

}

2020-03-25 11:17:15

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package Book_file;

import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Scanner;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.zip.DeflaterInputStream;
import java.util.zip.DeflaterOutputStream;

/**
 *
 * @author DELL
 */
public class main {
    static Scanner scan = new Scanner(System.in);
    public static void main(String[] args) {
        ArrayList<book> bookList = new ArrayList<>();
        int c;
        do {        
            menu();
            c= Integer.parseInt(scan.nextLine());
            switch(c){
                case 1:
                    addInfoBook(bookList);
                    break;
                case 2:
                    dispalayInforBook(bookList);
                    break;
                case 3:
                    sortBookByAuthor(bookList);
                    dispalayInforBook(bookList);
                    break;
                case 4:
                    saveInfoBooktoFile(bookList);
                    break;
                case 5:
                    saveToFile(bookList);
                    break;
                case 6:
                    DeflateFile();
                    break;
                case 7:
                    readFile();
                    
                    break;
                case 8:
                default:
                    break;
                
            }
            
        } while (c<8);
        
    }
    public static void menu() {
        System.out.println("1. Nhập thông tin N quấn sách");
        System.out.println("2. Hiển thị thông tin sách");
        System.out.println("3. Sắp xếp theo tên tác giả");
        System.out.println("4. Lưu thông tin sách vào file data.obj");
        System.out.println("5. Lưu thông tin mỗi quyển sách vào file data.txt theo định dạng (ten sách, tác giả, giá bán, ngày xuất bản, nhà xuất bản) mỗi quyển sách trên một dòng");
        System.out.println("6. Nén file data.txt thành file data.dfl");
        System.out.println("7. Đọc dữ liệu từ file data.obj và hiển thị ra màn hình");
        System.out.println("8. Thoát");
        System.out.println("Lua chon : ");
    }

    private static void addInfoBook(ArrayList<book> bookList) {
        System.out.println("so luong (n) cuon sach can nhap : ");
        int n= Integer.parseInt(scan.nextLine());
        for (int i = 0; i < n; i++) {
            book book = new book();
            book.input();
            bookList.add(book);
        }
    }

    private static void dispalayInforBook(ArrayList<book> bookList) {
           for (int i = 0; i < bookList.size(); i++) {
            bookList.get(i).display();
        }
    }

    private static void sortBookByAuthor(ArrayList<book> bookList) {
          Collections.sort(bookList, new Comparator<book>() {
              @Override
              public int compare(book o1, book o2) {
                     return o1.getAuthor().compareToIgnoreCase(o2.getAuthor());
              }
          });
    }

    private static void saveToFile(ArrayList<book> bookList) {
        FileOutputStream fos = null;
        BufferedOutputStream bos = null;
        try {
            fos = new FileOutputStream("d:/Java2/data.txt");
            bos = new BufferedOutputStream(fos);
            
            for (book object : bookList) {
                String line = object.getline();
                byte[] b;
                
                b = line.getBytes("utf8");
                bos.write(b);
            }
        } catch (IOException ex) {
            System.err.println("Loi ghi file  : "+ex);
        }finally{
            if (bos != null) {
                try {
                    bos.close();
                } catch (IOException ex) {
                    Logger.getLogger(main.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
            if (fos!= null) {
                try {
                    fos.close();
                } catch (IOException ex) {
                    Logger.getLogger(main.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        }
    }

    private static void saveInfoBooktoFile(ArrayList<book> bookList) {
         FileOutputStream fos =null;
         ObjectOutputStream oos = null;
         try {
            fos = new FileOutputStream("d:/Java2/data.obj");
            oos = new ObjectOutputStream(fos);
            
            oos.writeObject(bookList);
            
        } catch (IOException ex) {
             System.err.println("Loi ghi file : " + ex);
        }finally{
             if (fos != null) {
                 try {
                     fos.close();
                 } catch (IOException ex) {
                     Logger.getLogger(main.class.getName()).log(Level.SEVERE, null, ex);
                 }
             }
             if (oos != null) {
                 try {
                     oos.close();
                 } catch (IOException ex) {
                     Logger.getLogger(main.class.getName()).log(Level.SEVERE, null, ex);
                 }
             }
         }
    }

    private static void DeflateFile() {
          FileOutputStream fos =null;
          DeflaterInputStream dis = null;
          FileInputStream fis = null;
          try {
            fis = new FileInputStream("d:/Java2/data.txt");
            dis = new DeflaterInputStream(fis);
            
            fos = new FileOutputStream("d:/Java2/data.dfl");
            
            int code;
              while ((code = dis.read()) != - 1) {                  
                  fos.write(code);
              }
              
            
        } catch (IOException ex) {
              System.err.println("Loi nen file : "+ ex);
        }finally{
              if (fos != null) {
                  try {
                      fos.close();
                  } catch (IOException ex) {
                      Logger.getLogger(main.class.getName()).log(Level.SEVERE, null, ex);
                  }
              }
              if (dis != null) {
                  try {
                      dis.close();
                  } catch (IOException ex) {
                      Logger.getLogger(main.class.getName()).log(Level.SEVERE, null, ex);
                  }
              }
              if (fis != null) {
                  try {
                      fis.close();
                  } catch (IOException ex) {
                      Logger.getLogger(main.class.getName()).log(Level.SEVERE, null, ex);
                  }
              }
          }
    }

    private static void readFile() {
          FileInputStream fis = null;
          ObjectInputStream ois = null;
          
          try {
            fis = new FileInputStream("d:/Java2/data.obj");
            ois = new ObjectInputStream(fis);
            
          ArrayList<book>  bookList = (ArrayList<book>) ois.readObject();
            
              for (book object : bookList) {
                  object.display();
              }
            
        } catch (IOException ex) {
              System.err.println("Loi doc file : "+ex);
        } catch (ClassNotFoundException ex) {
            Logger.getLogger(main.class.getName()).log(Level.SEVERE, null, ex);
        }
          
    }
    
    
}

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package Book_file;

import java.io.Serializable;
import java.util.Scanner;

/**
 *
 * @author DELL
 */
public class book implements Serializable{
    String bookname , author, nhaXB , ngayXB;
    float price;

    public book() {
    }

    public book(String bookname, String author, String nhaXB, String ngayXB, float price) {
        this.bookname = bookname;
        this.author = author;
        this.nhaXB = nhaXB;
        this.ngayXB = ngayXB;
        this.price = price;
    }

    public String getBookname() {
        return bookname;
    }

    public void setBookname(String bookname) {
        this.bookname = bookname;
    }

    public String getAuthor() {
        return author;
    }

    public void setAuthor(String author) {
        this.author = author;
    }

    public String getNhaXB() {
        return nhaXB;
    }

    public void setNhaXB(String nhaXB) {
        this.nhaXB = nhaXB;
    }

    public String getNgayXB() {
        return ngayXB;
    }

    public void setNgayXB(String ngayXB) {
        this.ngayXB = ngayXB;
    }

    public float getPrice() {
        return price;
    }

    public void setPrice(float price) {
        this.price = price;
    }
    
    public void input(){
        Scanner scan = new Scanner(System.in);
        System.out.println("book name : ");
        bookname = scan.nextLine();
        System.out.println("author : ");
        author = scan.nextLine();
        System.out.println("nha xuat ban : ");
        nhaXB = scan.nextLine();
        System.out.println("ngay xuat ban : ");
        ngayXB = scan.nextLine();
        System.out.println("gia ban : ");
        price = Float.parseFloat(scan.nextLine());
        
    }

    @Override
    public String toString() {
        return "book{" + "bookname=" + bookname + ", author=" + author + ", nhaXB=" + nhaXB + ", ngayXB=" + ngayXB + ", price=" + price + '}';
    }
    public void display(){
        System.out.println(toString());
    }
    
    public String getline(){
        return bookname + "," + author + ","+ price+ ","  + nhaXB + "," + ngayXB  + "\n";
    }
    
}