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Thread: Save the information from an ArrayList after restarting the program

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    Default Save the information from an ArrayList after restarting the program

    How can i save an information stored in an ArrayList object after the program has been terminated and started again?
    I save all the information from the ArrayList object in a file.

    I have an idea-to check if the file exists and if so the information coppied in the file,copies in the arraylist. Can I achieve that or is there another way to do so?


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    Default Re: Save the information from an ArrayList after restarting the program

    You could serialize the object (see Discover the secrets of the Java Serialization API ). If the List contains any object that does not implement Serializable, then you must somehow implement it. You could also write out some code which can save the list as xml. Depending upon how complex the List objects are, this could be easy or hard, but in my opinion is a bit more flexible that Serialization

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    Default Re: Save the information from an ArrayList after restarting the program

    there are several ways to save objects (in you case: the list) to a file and read it back to an object. the easiest way i know is to use Xstream. it works on everything, no matter if it's serializable or not.
    XStream - Two Minute Tutorial

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    Default Re: Save the information from an ArrayList after restarting the program

    Quote Originally Posted by hamsterofdeath View Post
    there are several ways to save objects (in you case: the list) to a file and read it back to an object. the easiest way i know is to use Xstream. it works on everything, no matter if it's serializable or not.
    XStream - Two Minute Tutorial
    how to install the libraries in Eclipse? I think XStream will do the trick

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    Default Re: Save the information from an ArrayList after restarting the program

    google "eclipse tutorial"

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