Randomaccessfile using char array

[TechGate]

Hello,
Here is my problem, I am trying to use Randomaccessfile using the char array.

Public class RevisionsRAF 
{
	Public static void hand (String [] args) throws IOException
	{
		long tlrc = 12;
		int nb = 4;
String dir, category;
		double prices, rates, prixTTC, tax;
RandomAccessFile ram = new RandomAccessFile("c:\\work\\fichiersTaxes.dat ","rw");

ram.writeChar("LI"); ram.writeDouble(1.45);
ram.writeChar("DI"); ram.writeDouble(1.60);
ram.writeChar("CD"); ram.writeDouble(1.75);
ram.writeChar("DV"); ram.writeDouble(1.85);

I have the problem with the "LI" and "DL". If you have any solution for this please reply back. Thanks in advance.

[Modifier]

Hi,
I think you are missing this. readChar can not read "LI", it reads only "L"

cat [0] = ram.readChar (); cat [1] = ram.readChar ();

In cat [0] you: "L", and cat [1] you have "I"
Then you do:

Scat String = new String (cat);

So you create a chain that contains "L" + "I" => "LI"
and then

System.out.println ( "here" + SCAT);

hope this will help you.

[TechGate]

Hello,
Thank you for your explanation simple and clear. Same question as in my previous message, how many bytes per character, I have a less idea in this topic, so if you can explain me in more details I can catch the point. You have post it, but I did not understand all the concepts. Thank you for your dedication.

[Reegan]

Hello,
Java characters are encoded in Unicode (UTF16 I think) so 16-bit, which makes us so good 2 bytes. By cons I have a little doubt, the method writeChar readChar and do it not convert the charset of the default OS (UTF8 under windaube example), making that are one byte in the file? I take back what I said to convert to UTF8. I have tested. Actually I confused with PrintWriter.println (String), which is in the string format.

[TechGate]

Hello,
Thank you for your reply. So char is good two octets. Besides documenting sun, THERE-there's a way to find a summary table with the size of Write ? I hope I am correct here. Do you know any other site for documentation, where I can find easy documents and learn quicker. This is going to help me, if you have any one, please send me a link.

[MindSpace]

Hello,
Javadoc:
Character.SIZE: number of bits used to store a character in memory. This value is 16. To convert byte, divide by 8 -> = 2 bytes.
In the same kind you can do Integer.SIZE, etc. Long.SIZE.
what I know:

char = 2
int = 4
Long = 8

If you need any other help with this topic then please do post back.