tema lab3 java

//carte class

import java.io.*;


public class Carte implements Serializable
{
    /**
     *
     */
    private static final long serialVersionUID = 1L;
    private String titlu;
    private String autor;
    private int an;
    private int id;
    private String editura;


public Carte() //constructor implicit
{
     this.titlu=" ";
     this.setAutor(" ");
     this.setEditura(" ");
     setAn(0);
     setId(0);

}

public Carte(String titlu,String autor,String editura,int an,int id)
{
    this.titlu=titlu;
    this.setEditura(editura);
    this.setAn(an);
    this.setAutor(autor);
    this.setId(id);

}

public String getTitlu()
{
    return titlu;
}

public void setAutor(String autor) {
    this.autor = autor;
}

public String getAutor() {
    return autor;
}

public void setAn(int an) {
    this.an = an;
}

public int getAn() {
    return an;
}

public void setId(int id) {
    this.id = id;
}

public int getId() {
    return id;
}

public void setEditura(String editura) {
    this.editura = editura;
}

public String getEditura() {
    return editura;
}


}


//test class
import java.io.*;
import java.util.*;
import java.util.zip.ZipOutputStream;

public class Test
{
    //main

    {
        List<Carte>carti=new ArrayList<Carte>();
        carti.add(new Carte("Titlu 1","autor1","Ed1",2000,101));


    PrintWriter pw=new PrintWriter("fisier.txt"); //fisier in care scriem
    for(Carte c : carti)
    {
        pw.print(c.getTitlu()+" \n");
        pw.print(c.getId()+"\n");
        pw.print(c.getAn()+"\n");
        pw.print(c.getAutor()+"\n");
        pw.print(c.getEditura()+"\n");
    }



    ObjectOutputStream oos=new ObjectOutputStream(new FileOutputStream("fisier.txt"));
    for(Carte c : carti)
    {
        oos.writeObject(c);
    }


//Scriere in fisier zip

    ZipOutputStream out=new ZipOutputStream(new FileOutputStream("fis.zip")); //creeaza arhiva
    OutputNextEntry(new ZipEntry ("fis.txt")); //fisierele din arhiva se numesc Entry
    byte[] b=new byte[1024];
                 int len;
                 FileInputStream in=new FileInputSteam("fisier.txt");

    while((len=in.read(b))>0)
    {
        out.write(b,0,len);
    }

    //citirea de la consola
    System.out.println("Ce doriti sa cititi?");
    BufferedReader buff=new BufferReader(new InputStream (System.in));

    String in= buff.readLine();
    int d=in.lastIndexOf('.');
    String ext=in.substring(d+1); //ext == extensia fisierului

    if (ext.equals("txt")) //daca extensia ==txt
    {
        FileReader fr=new FileReader("fisier.txt");
        BufferedReader br=new BufferedReader(fr);
        String s;
        while( (s=br.readLine())!=null)
            {
                System.out.println(s);

            }
    }

    if(ext.equals("bin"))
    {
        List<Carte> lista= new ArrayList<Carte>();
    }

    ObjectInputStream ois=new OIS(new FileIS("fisier2.bin"));
    Carte c;
    while(c=(Carte)(ois.readObject())!=null)
    {
        lista.add(c);
        c.afisare();
    }

            if(ext.equals("zip"))
                {
                    ZipFile zf=new ZipFile("fis.zip");
                    ZipEntry ze=zf.Entry("fis.txt");
                    InputStream is=zf.getInputStream(ze);

            while((len=is.read(b))>0)
            {
                System.out.write(b,0,len);
            }

                is.close();
                }
    }
}