How to get amount of serialized bytes representing a Java object?

Question

What syntax would I use to get the number of bytes representing a string and compare them to the number of bytes representing an ArrayList holding that string, for

Answer 1

You can check the size of object after serialization process using Apache Commons as follows:

    // Create serialize objects.
    final List src = new ArrayList();
    src.add("awsome");
    src.add("stack");
    src.add("overflow");

    System.out.println(
            "Size after serialization:" + SerializationUtils.serialize((Serializable) src).length);

Output :

Size after serialization:86