Saving to binary/serialization java

Question

I have to, quote on quote,

1.Save accounts to a binary (serialized) file. 2.Load (recreate) accounts from a binary (serialized) file.

Answer 1

Assuming you have a class called "account" you simply need to implements Serializable at the top of your class header.

From my understanding, that will serialize all the data into a binary form. You will need to of course still perform the steps to actually write/read the class object out to a file using ObjectOutputStream/ObjectInputStream.

So for example...

public class account implements Serializable
{ ...
}

Then in your main function for example, where you want to save the object, you would create a File, attach it to an ObjectOutputStream and write out your object in binary form.

Answer 2

First hit on google: http://www.javacoffeebreak.com/articles/serialization/index.html - basically you should serialize your object to a file. Then you can load it into an object again later.