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Converting a 4 bytes long to a java 8 bytes long...

Posted on 1998-08-07
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Last Modified: 2010-05-18
I am reading a file that contains longs as 4 bytes, chars as 1 byte, ints as 2 bytes values..
I need to convert all the values to java native types.. (long as 8 byte, int as 4 byte and
char as 2 bytes)....

how can this be done...

can some code be included...
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Question by:simlox
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6 Comments
 
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Accepted Solution

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mjenkins earned 20 total points
ID: 1231715
FileInputStream istream = new FileInputStream("t.tmp");
DataInputStream p2 = new DataInputStream(istream);
int i = p2.readInt(); // reads 4 byte value
int i1 = p2.readShort(); // reads 2 byte value
char c = (char)p2.readByte(); // reads 1 byte char
istream.close();

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Expert Comment

by:mjenkins
ID: 1231716
Did this solve your problem?
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Author Comment

by:simlox
ID: 1231717
Yes.. it worked perfectly..
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LVL 3

Expert Comment

by:mjenkins
ID: 1231718
Then why did you give it a "D"? I'm curious. You must have expected more. I thought that the supplied code was sufficient an answer. Obviously I was mistaken.
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Author Comment

by:simlox
ID: 1231719
I gave it a 'B'.... The other question on conversions
from a binary file using ObjectInputStream was given a
'D'..not this one.. I use the above information on the
same binary file..
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LVL 3

Expert Comment

by:mjenkins
ID: 1231720
My mistake, I confused the questions. I'm still disappointed that you graded the other question a "D" .. It is kind of a matter of pride. Yours is the only D I've gotten thus far as an "expert" here. Oh, well...
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