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converting ArrayList to Object

charlie mills
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Joined: Nov 01, 2008
Posts: 49
I have read in data from a file (which is currently in an arrayList). I need to convert this arrayList into Object (ie. - Object[][] addresses = {{"Hancock", "Bob", "01202719029", "07676101393", "1 Seseme Street, London, AB8 8AE"}}; ) because I then need to display all the data from that file in a table(DefaultTabelModel)

I've got the data in an arraylist at the moment but I'm unsure of how to convert it.
Rob Camick
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Joined: Jun 13, 2009
Posts: 2451
I have read in data from a file

Well, don't read it into an ArrayList. Read it into a Vector of Vectors instead, then you can create the JTable or DefaultTableModel directly from the Vector.
charlie mills
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Joined: Nov 01, 2008
Posts: 49
Having looked up Vectors in the API, that does seem to make a lot more sense! Thanks

What is the difference between Object and Vector?

On a completely separate note, if I were to write data to the file that I have just read from, can I write the data as a String? (so I would write to the file as a string and read it out as a vector?)
I agree. Here's the link:
subject: converting ArrayList to Object
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