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Thread: Serializable arraylist as txt?

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    Default Serializable arraylist as txt?

    Hello, I used 'Serializable' on an arraylist, to save as a txt file, how do I make it 'readable' ? right now when I open the file it's just jibberish
    oh! I suck at Java, so help me in english

    Do I have to change something here?

    	        try {
    	            System.out.println("serializing list");
    	            FileOutputStream fout = new FileOutputStream("registrys.ser");
    	            ObjectOutputStream oos = new ObjectOutputStream(fout);
    	            oos.writeObject(registrys);
    	            oos.close();
    	        }
    	        catch (Exception e) {
    	            e.printStackTrace();
    	        }


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    Default Re: Serializable arraylist as txt?

    Are you asking how to deserialize the list? The ObjectInputStream has a readObject() method, which you can cast into whatever the object was. I believe that method deserializes. Not sure if it works for ArrayLists, but you can give it a shot.
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    Default Re: Serializable arraylist as txt?

    when I open the file it's just jibberish
    The file contains binary data not text.
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Serializable arraylist as txt?

    deserialize makes it possible to 'load' a list when you start a program, yes? I will look at that, but not really what I need at this moment.

    Quote Originally Posted by Norm View Post
    The file contains binary data not text.
    yes, exactly, can I make a file containing text?

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    Default Re: Serializable arraylist as txt?

    Yes. You will need to write special code to write out the contents of the ArrayList as readable text.
    What do you want to do with the disk file?
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Serializable arraylist as txt?

    Quote Originally Posted by Norm View Post
    Yes. You will need to write special code to write out the contents of the ArrayList as readable text.
    What do you want to do with the disk file?
    What do you mean 'disk file'?

    All I want is to make it readable outside eclipse

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    Default Re: Serializable arraylist as txt?

    By "disk file" I meant a file that was written on a disk. I suppose it could also have been written to a memory stick. Basically I meant the file was written to a place out side of the program where it would be kept permanently.
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Serializable arraylist as txt?

    Quote Originally Posted by Norm View Post
    By "disk file" I meant a file that was written on a disk. I suppose it could also have been written to a memory stick. Basically I meant the file was written to a place out side of the program where it would be kept permanently.
    okey, well it's fine, I'll read some, it's not that urgent, thx anyway!

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    Default Re: Serializable arraylist as txt?

    Another possibility is the XMLEncoder class.
    If you don't understand my answer, don't ignore it, ask a question.

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