How to Save ArrayLists?

I want to save a few ArrayLists so that I can log off and/or shut down the server and still have the data. How can I do this and then load them?

 

use the SLAPI to save/load the object.

Code:java

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
 
/** SLAPI = Saving/Loading API
* API for Saving and Loading Objects.
* You can use this API in your projects, but please credit the original author of it.
* @author Tomsik68<[email][email protected][/email]>
*/
public class SLAPI
{
    public static <T extends Object> void save(T obj,String path) throws Exception
    {
        ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(path));
        oos.writeObject(obj);
        oos.flush();
        oos.close();
    }
    public static <T extends Object> T load(String path) throws Exception
    {
        ObjectInputStream ois = new ObjectInputStream(new FileInputStream(path));
        T result = (T)ois.readObject();
        ois.close();
        return result;
    }
}