package Multimedia;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.*;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
public class EscrituraLecturaDeObjetosMultimedia {//Variables
private Object EscrituraLecturaDeObjetosMultimedia;
private ObjectOutputStream escritura;
private ObjectInputStream lectura;
private FileOutputStream fileOutPutStream;
private FileInputStream fileInPutStream;
//Constructores
public EscrituraLecturaDeObjetosMultimedia(String objeto){this.EscrituraLecturaDeObjetosMultimedia = objeto ;
}
//Metodos
public void escrituraObjetos(EstanteriaMultimedia estanteriaMultimedia) throws IOException {fileOutPutStream = new FileOutputStream("estanteria.dat");escritura = new ObjectOutputStream(fileOutPutStream);
for (int i = 0; i < estanteriaMultimedia.size(); i++) {escritura.writeObject(estanteriaMultimedia.get(i));
}
escritura.close();
}
public ArrayList lecturaObjetos(int numObjetos)throws Exception,FileNotFoundException,
IOException{ArrayList listaObjetos = new ArrayList();
FileInputStream fileInputStream = new FileInputStream("estanteria.dat");lectura = new ObjectInputStream(fileInputStream);
for(int i=0; i<numObjetos;i++){listaObjetos.add(lectura.readObject());
}
lectura.close();
return listaObjetos;
}
public static void main(String[] args) {//Variables
//Metodos
}
}
Y esta es la clase EstanteriaMultimedia:
package Multimedia;
public class EstanteriaMultimedia {
//Variables
private EstanteriaMultimedia[]listaMultimedia;
private int contador;
//Constructor
public EstanteriaMultimedia(int tamañoMaximo){listaMultimedia = new EstanteriaMultimedia[tamañoMaximo];
contador = 0;
}
EstanteriaMultimedia(String algo, String algos, String assa, String algos_s) {throw new UnsupportedOperationException("Not yet implemented");}
//Metodos
public int size(){return contador;
}
public boolean llena(){return contador == listaMultimedia.length;
}
public boolean add(EstanteriaMultimedia multimedia){if(llena()){return false;
}else{listaMultimedia[contador]=multimedia;
contador++;
return true;
}
}
public EstanteriaMultimedia get(int posicion){if(posicion < 0 || posicion >= contador)
throw new IndexOutOfBoundsException();
return listaMultimedia[posicion];
}
public int indexOf(EstanteriaMultimedia multimedia){for (int i=0; i<contador; i++){if(multimedia.equals(listaMultimedia)){return i;
}
}
return -1;
}
public String toString(){String lista = "";
for(int i=0; i<contador; i++){lista += listaMultimedia.toString()+"\n\n";
}
return lista;
}
}
