-I have tried to use the instrumentation api in java 1.6.0, but found that I sinply can't
get it to work, certainly outside of a jar file, since I don't understand how to set up
the System.setProperty("property","value") calls correctly to avoid using any keyboard input arguments.
At any rate, I have discovered the DataFlavor class, which I leverage as follows:
Byte item = new Byte((byte)1);
DataFlavor dataFlavor = new DataFlavor(item.getClass(),"java.lang.Byte");
ByteArrayOutputStream byteOutputStream = new ByteArrayOutputStream();
ObjectOutputStream objectOutputStream = new ObjectOutputStream(byteOutputStream);
int total = byteOutputStream.toByteArray().length;
out.println("number of characters: " + item.length());
out.println("Number of bytes: " + total);
-How exactly does this put an object into the ByteArrayOutputStream?
Can I get the bytes and count them for a good representation of an object's size in memory?
However, is this doing a shallow or a deep object write?
Does it include anything contained inside annotations or not?
-In terms of 1024 bytes per kilobyte, and 8 bits per byte,
how many bit (full) may be stored in a java byte typed variable, as a check?
Will it always use a 9th bit to store + or - anyway (always a 9th for +) ?