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Unread 25-01-2014, 20:13
NotInControl NotInControl is offline
Controls Engineer
AKA: Kevin
FRC #2168 (Aluminum Falcons)
Team Role: Engineer
 
Join Date: Oct 2011
Rookie Year: 2004
Location: Groton, CT
Posts: 261
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Re: File IO without overwriting file

Quote:
Originally Posted by blanketboyjo View Post
Code:
PrintStream writer;
DataOutputStream myFile;
FileConnection con;

try {
con = (FileConnection)Connector.open("file:///test.txt", Connector.WRITE);
use Connector.Read_Write

try something like this

Code:
Connection conn = Connector.open(String fileName, Connector.READ_WRITE);
FileConnection fc = (FileConnection) conn;
if (!fc.exists()) {
fc.create();
}
OutputStream os = fc.openOutputStream(fc.fileSize());
After opening the file with the above code snippet if you are going to write something to the file then it will append at the end of the file content


Hope this helps,
Kevin
__________________
Controls Engineer, Team 2168 - The Aluminum Falcons
[2016 Season] - World Championship Controls Award, District Controls Award, 3rd BlueBanner
-World Championship- #45 seed in Quals, World Championship Innovation in Controls Award - Curie
-NE Championship- #26 seed in Quals, winner(195,125,2168)
[2015 Season] - NE Championship Controls Award, 2nd Blue Banner
-NE Championship- #26 seed in Quals, NE Championship Innovation in Controls Award
-MA District Event- #17 seed in Quals, Winner(2168,3718,3146)
[2014 Season] - NE Championship Controls Award & Semi-finalists, District Controls Award, Creativity Award, & Finalists
-NE Championship- #36 seed in Quals, SemiFinalist(228,2168,3525), NE Championship Innovation in Controls Award
-RI District Event- #7 seed in Quals, Finalist(1519,2168,5163), Innovation in Controls Award
-Groton District Event- #9 seed in Quals, QuarterFinalist(2168, 125, 5112), Creativity Award
[2013 Season] - WPI Regional Winner - 1st Blue Banner
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