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Thread: Arraylist Save and Load

  1. #1
    Junior Member
    Join Date
    Nov 2009
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    Default Arraylist Save and Load

    HI i am using this syntax to store arraylist to inventory.dat file.When i store, it give a scattered output on the .dat file like this.....

    sr Carsguimainexecution.SaleinfoEWf L productsalest Ljava/util/ArrayList;xpsr java.util.ArrayListxa I sizexp w
    sr Carsguimainexecution.SalesubZ㾝 xr Carsguimainexecution.SaleProducti>2q I CarnumberD pricesoldI
    productNumberD stockD unitsoldL Carbuyert Ljava/lang/String;L Carnameq ~ xp t Defaultq ~ sq ~  @I @@ @$ t dsdggsdrft fgsgsfsq ~  @@ @| @& t dfgdrht gyjgyjsq ~  @@ @p @( t dfsbt fddndfsq ~  @@ @È @$ t sdfsdft sdfsfsfsq ~  @$ @y @D t dsdgrght hdhdhsq ~  @$ @@ @Y t fbdfbt dfbdfbsq ~  @$ @Y @$ t defaultt defaultsq ~   t Defaultt Defaultx

    Is the output an error or its correct,and if its correct how can i load this information back to an arraylist.

    To Store,this is what i use excluding the try and catch:-

    File f = new File( "C:\\data\\inventory.dat" );
    FileOutputStream out = new FileOutputStream( f );
    ObjectOutputStream objectOut = new ObjectOutputStream( out );
    objectOut.writeObject( inv );

    This is a sample of how my arraylist looks like;

    products.add( new CarsSubProduct( "FordMustang",1,1000,10000 ) );

    Please any advice will be really helpful.

  2. #2
    Super Moderator Json's Avatar
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    Jul 2009
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    Default Re: Arraylist Save and Load

    That looks alright, Java just serialises it all into the file.

    How about using an ObjectInputStream to read it back?

    See Create ObjectInputStream from FileInputStream : ObjectInputStreamFileJava Tutorial

    // Json

  3. The Following User Says Thank You to Json For This Useful Post:

    frankycool (November 14th, 2009)

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