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Re: Modifying a file.

Nov 22nd, 2008

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Originally Posted by stephen84s

Just a thought, instead of writing each object after serializing one by one to the file, why don't you just serialize the entire ArrayList and write it to a file.
And when you need to add any data to the file, get the ArrayList back from the file, add the object to the ArrayList and serialize this ArrayList overwrite the file with the older file.

Unfortunately, the implementation of ArrayList<T> looks [something] like this--

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//... necessary imports
 
public class ArrayList<T> extends List<T> implements Collection<T>, Serializable{
 
    private transient Object[] elements = null; // key point @_@
 
    public T get(int position){
          return (T)elements[position];
    }
}
//... necessary imports

public class ArrayList<T> extends List<T> implements Collection<T>, Serializable{

    private transient Object[] elements = null; // key point @_@
    
    public T get(int position){
          return (T)elements[position];
    }
}